Is a $S$ an element or subset or both of $T$? [closed]

Clash Royale CLAN TAG#URR8PPP

up vote
-2
down vote

favorite

1

I have a question on basic set theory.

$S = a, b$

$T= a, b, c, d, e, f $

1. Is $S$ a subset of $T$?


2. Is $S$ an element of $T$?

elementary-set-theory

share|cite|improve this question

edited Aug 1 at 11:48

Asaf Karagila

291k31401731

asked Aug 1 at 11:29

user580935

closed as off-topic by Mauro ALLEGRANZA, Batominovski, Simply Beautiful Art, John Ma, Isaac Browne Aug 1 at 17:05

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "This question is missing context or other details: Please improve the question by providing additional context, which ideally includes your thoughts on the problem and any attempts you have made to solve it. This information helps others identify where you have difficulties and helps them write answers appropriate to your experience level." – Batominovski, Simply Beautiful Art, John Ma, Isaac Browne

If this question can be reworded to fit the rules in the help center, please edit the question.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $S$ is a subset of $T$, and is not an element of $T$. Do you see why?
  – Suzet
  Aug 1 at 11:31
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  Welcome to MSE. For some basic information about writing mathematics at this site see, e.g., basic help on mathjax notation, mathjax tutorial and quick reference, main meta site math tutorial and equation editing how-to.
  – José Carlos Santos
  Aug 1 at 11:32
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  I don't understand how $a,b$ is an incorrect formatting of a,b.
  – Asaf Karagila
  Aug 1 at 11:36
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Did you though?
  – Asaf Karagila
  Aug 1 at 11:38
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Ryan. I can help you, sure. But first I need to you settle on a version of the question.
  – Asaf Karagila
  Aug 1 at 11:42
  

  
  
  
  

 | 
show 5 more comments

up vote
-2
down vote

favorite

1

I have a question on basic set theory.

$S = a, b$

$T= a, b, c, d, e, f $

1. Is $S$ a subset of $T$?


2. Is $S$ an element of $T$?

elementary-set-theory

share|cite|improve this question

edited Aug 1 at 11:48

Asaf Karagila

291k31401731

asked Aug 1 at 11:29

user580935

closed as off-topic by Mauro ALLEGRANZA, Batominovski, Simply Beautiful Art, John Ma, Isaac Browne Aug 1 at 17:05

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "This question is missing context or other details: Please improve the question by providing additional context, which ideally includes your thoughts on the problem and any attempts you have made to solve it. This information helps others identify where you have difficulties and helps them write answers appropriate to your experience level." – Batominovski, Simply Beautiful Art, John Ma, Isaac Browne

If this question can be reworded to fit the rules in the help center, please edit the question.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $S$ is a subset of $T$, and is not an element of $T$. Do you see why?
  – Suzet
  Aug 1 at 11:31
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  Welcome to MSE. For some basic information about writing mathematics at this site see, e.g., basic help on mathjax notation, mathjax tutorial and quick reference, main meta site math tutorial and equation editing how-to.
  – José Carlos Santos
  Aug 1 at 11:32
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  I don't understand how $a,b$ is an incorrect formatting of a,b.
  – Asaf Karagila
  Aug 1 at 11:36
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Did you though?
  – Asaf Karagila
  Aug 1 at 11:38
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Ryan. I can help you, sure. But first I need to you settle on a version of the question.
  – Asaf Karagila
  Aug 1 at 11:42
  

  
  
  
  

 | 
show 5 more comments

up vote
-2
down vote

favorite

1

up vote
-2
down vote

favorite

1

1

I have a question on basic set theory.

$S = a, b$

$T= a, b, c, d, e, f $

1. Is $S$ a subset of $T$?


2. Is $S$ an element of $T$?

elementary-set-theory

share|cite|improve this question

edited Aug 1 at 11:48

Asaf Karagila

291k31401731

asked Aug 1 at 11:29

user580935

I have a question on basic set theory.

$S = a, b$

$T= a, b, c, d, e, f $

1. Is $S$ a subset of $T$?


2. Is $S$ an element of $T$?

elementary-set-theory

share|cite|improve this question

edited Aug 1 at 11:48

Asaf Karagila

291k31401731

asked Aug 1 at 11:29

user580935

share|cite|improve this question

share|cite|improve this question

edited Aug 1 at 11:48

Asaf Karagila

291k31401731

edited Aug 1 at 11:48

Asaf Karagila

291k31401731

edited Aug 1 at 11:48

Asaf Karagila

291k31401731

291k31401731

asked Aug 1 at 11:29

user580935

asked Aug 1 at 11:29

user580935

asked Aug 1 at 11:29

user580935

closed as off-topic by Mauro ALLEGRANZA, Batominovski, Simply Beautiful Art, John Ma, Isaac Browne Aug 1 at 17:05

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "This question is missing context or other details: Please improve the question by providing additional context, which ideally includes your thoughts on the problem and any attempts you have made to solve it. This information helps others identify where you have difficulties and helps them write answers appropriate to your experience level." – Batominovski, Simply Beautiful Art, John Ma, Isaac Browne

If this question can be reworded to fit the rules in the help center, please edit the question.

closed as off-topic by Mauro ALLEGRANZA, Batominovski, Simply Beautiful Art, John Ma, Isaac Browne Aug 1 at 17:05

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "This question is missing context or other details: Please improve the question by providing additional context, which ideally includes your thoughts on the problem and any attempts you have made to solve it. This information helps others identify where you have difficulties and helps them write answers appropriate to your experience level." – Batominovski, Simply Beautiful Art, John Ma, Isaac Browne

If this question can be reworded to fit the rules in the help center, please edit the question.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $S$ is a subset of $T$, and is not an element of $T$. Do you see why?
  – Suzet
  Aug 1 at 11:31
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  Welcome to MSE. For some basic information about writing mathematics at this site see, e.g., basic help on mathjax notation, mathjax tutorial and quick reference, main meta site math tutorial and equation editing how-to.
  – José Carlos Santos
  Aug 1 at 11:32
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  I don't understand how $a,b$ is an incorrect formatting of a,b.
  – Asaf Karagila
  Aug 1 at 11:36
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Did you though?
  – Asaf Karagila
  Aug 1 at 11:38
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Ryan. I can help you, sure. But first I need to you settle on a version of the question.
  – Asaf Karagila
  Aug 1 at 11:42
  

  
  
  
  

 | 
show 5 more comments

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $S$ is a subset of $T$, and is not an element of $T$. Do you see why?
  – Suzet
  Aug 1 at 11:31
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  Welcome to MSE. For some basic information about writing mathematics at this site see, e.g., basic help on mathjax notation, mathjax tutorial and quick reference, main meta site math tutorial and equation editing how-to.
  – José Carlos Santos
  Aug 1 at 11:32
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  I don't understand how $a,b$ is an incorrect formatting of a,b.
  – Asaf Karagila
  Aug 1 at 11:36
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Did you though?
  – Asaf Karagila
  Aug 1 at 11:38
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Ryan. I can help you, sure. But first I need to you settle on a version of the question.
  – Asaf Karagila
  Aug 1 at 11:42
  

  
  
  
  

$S$ is a subset of $T$, and is not an element of $T$. Do you see why?
– Suzet
Aug 1 at 11:31

$S$ is a subset of $T$, and is not an element of $T$. Do you see why?
– Suzet
Aug 1 at 11:31

Welcome to MSE. For some basic information about writing mathematics at this site see, e.g., basic help on mathjax notation, mathjax tutorial and quick reference, main meta site math tutorial and equation editing how-to.
– José Carlos Santos
Aug 1 at 11:32

Welcome to MSE. For some basic information about writing mathematics at this site see, e.g., basic help on mathjax notation, mathjax tutorial and quick reference, main meta site math tutorial and equation editing how-to.
– José Carlos Santos
Aug 1 at 11:32

I don't understand how $a,b$ is an incorrect formatting of a,b.
– Asaf Karagila
Aug 1 at 11:36

I don't understand how $a,b$ is an incorrect formatting of a,b.
– Asaf Karagila
Aug 1 at 11:36

1

1

Did you though?
– Asaf Karagila
Aug 1 at 11:38

Did you though?
– Asaf Karagila
Aug 1 at 11:38

1

1

Ryan. I can help you, sure. But first I need to you settle on a version of the question.
– Asaf Karagila
Aug 1 at 11:42

Ryan. I can help you, sure. But first I need to you settle on a version of the question.
– Asaf Karagila
Aug 1 at 11:42

 | 
show 5 more comments

4 Answers
4

active

oldest

votes

up vote
1
down vote



accepted

The easy way to solve these questions is to put dummy variables.

This is just like how $(x^4+5234-sqrt x)^2=3$ is easier to solve when setting $t=x^4+5234-sqrt x$, and thus $t^2=3$, it is sometimes easier to solve these problems when you replace the inner sets with dummy variables.

Set $x=a,y=b,z=c,w=d,e,f$. Now we have $S=x,y$ and $T=x,y,z,w$. Which one is true now, is $Sin T$ or $Ssubseteq T$, or both?

share|cite|improve this answer

answered Aug 1 at 11:46

Asaf Karagila

291k31401731

add a comment | 

up vote
1
down vote

$S$ is not a subset of $T$, otherwise we would have $a in T$, which is not the case.

$S$ is not an element of $T$, otherwise we would have $a,b in T$, which is not the case.

share|cite|improve this answer

answered Aug 1 at 11:41

Fred

37k1237

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  This was a correct answer when it was posted -- a few minutes later the OP changed the question once again ...
  – Henning Makholm
  Aug 1 at 11:46
  

  
  
  
  

add a comment | 

up vote
0
down vote

No and no, because $a neq a$ and $b neq b$.

To (i): It is

$$a, b subset T,$$

but

$$a, b notsubset T.$$

To (ii): It is

$$a in T text and b in T, $$

but

$$ a,b notin T. $$

share|cite|improve this answer

answered Aug 1 at 11:46

til

694

add a comment | 

up vote
0
down vote

Edit : Since the question had two different versions, I'm gonna reply to both.

Case where $S = a,b$ :

$S$ would have been a subset of T if the elements $a$ and $b$ were contained in $T$ (example : $T = a,b,c,d,e,f,a,b$), and $S$ would have been an element of $T$ if... Well, if a,b was an element of T (example : $T = a,b,c,d,e,f,a,b$), so $S$ is neither a subset nor an element of $T$.

---

Case where $S = a,b$ :

$S$ is a subset of $T$ since all elements of $S$ are elements of $T$.

$S$ would have been an element of $T$ if the element $a,b$ was an element of $T$.

share|cite|improve this answer

edited Aug 1 at 11:54

answered Aug 1 at 11:39

Pakos

11

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  "Contained in" is not good wording to use in an explanation for a confused beginner, because that wording is used both for subsets and for elements, by people who trust their audience can resolve the ambiguity on their own.
  – Henning Makholm
  Aug 1 at 11:43
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  But doesn't my example in parenthesis resolves the ambiguity ?
  – Pakos
  Aug 1 at 11:56
  

  
  
  
  

add a comment | 

4 Answers
4

active

oldest

votes

4 Answers
4

active

oldest

votes

active

oldest

votes

active

oldest

votes

up vote
1
down vote



accepted

The easy way to solve these questions is to put dummy variables.

This is just like how $(x^4+5234-sqrt x)^2=3$ is easier to solve when setting $t=x^4+5234-sqrt x$, and thus $t^2=3$, it is sometimes easier to solve these problems when you replace the inner sets with dummy variables.

Set $x=a,y=b,z=c,w=d,e,f$. Now we have $S=x,y$ and $T=x,y,z,w$. Which one is true now, is $Sin T$ or $Ssubseteq T$, or both?

share|cite|improve this answer

answered Aug 1 at 11:46

Asaf Karagila

291k31401731

add a comment | 

up vote
1
down vote



accepted

The easy way to solve these questions is to put dummy variables.

This is just like how $(x^4+5234-sqrt x)^2=3$ is easier to solve when setting $t=x^4+5234-sqrt x$, and thus $t^2=3$, it is sometimes easier to solve these problems when you replace the inner sets with dummy variables.

Set $x=a,y=b,z=c,w=d,e,f$. Now we have $S=x,y$ and $T=x,y,z,w$. Which one is true now, is $Sin T$ or $Ssubseteq T$, or both?

share|cite|improve this answer

answered Aug 1 at 11:46

Asaf Karagila

291k31401731

add a comment | 

up vote
1
down vote



accepted

up vote
1
down vote



accepted

The easy way to solve these questions is to put dummy variables.

This is just like how $(x^4+5234-sqrt x)^2=3$ is easier to solve when setting $t=x^4+5234-sqrt x$, and thus $t^2=3$, it is sometimes easier to solve these problems when you replace the inner sets with dummy variables.

Set $x=a,y=b,z=c,w=d,e,f$. Now we have $S=x,y$ and $T=x,y,z,w$. Which one is true now, is $Sin T$ or $Ssubseteq T$, or both?

share|cite|improve this answer

answered Aug 1 at 11:46

Asaf Karagila

291k31401731

The easy way to solve these questions is to put dummy variables.

This is just like how $(x^4+5234-sqrt x)^2=3$ is easier to solve when setting $t=x^4+5234-sqrt x$, and thus $t^2=3$, it is sometimes easier to solve these problems when you replace the inner sets with dummy variables.

Set $x=a,y=b,z=c,w=d,e,f$. Now we have $S=x,y$ and $T=x,y,z,w$. Which one is true now, is $Sin T$ or $Ssubseteq T$, or both?

share|cite|improve this answer

answered Aug 1 at 11:46

Asaf Karagila

291k31401731

share|cite|improve this answer

share|cite|improve this answer

answered Aug 1 at 11:46

Asaf Karagila

291k31401731

answered Aug 1 at 11:46

Asaf Karagila

291k31401731

answered Aug 1 at 11:46

Asaf Karagila

291k31401731

291k31401731

add a comment | 

add a comment | 

up vote
1
down vote

$S$ is not a subset of $T$, otherwise we would have $a in T$, which is not the case.

$S$ is not an element of $T$, otherwise we would have $a,b in T$, which is not the case.

share|cite|improve this answer

answered Aug 1 at 11:41

Fred

37k1237

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  This was a correct answer when it was posted -- a few minutes later the OP changed the question once again ...
  – Henning Makholm
  Aug 1 at 11:46
  

  
  
  
  

add a comment | 

up vote
1
down vote

$S$ is not a subset of $T$, otherwise we would have $a in T$, which is not the case.

$S$ is not an element of $T$, otherwise we would have $a,b in T$, which is not the case.

share|cite|improve this answer

answered Aug 1 at 11:41

Fred

37k1237

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  This was a correct answer when it was posted -- a few minutes later the OP changed the question once again ...
  – Henning Makholm
  Aug 1 at 11:46
  

  
  
  
  

add a comment | 

up vote
1
down vote

up vote
1
down vote

$S$ is not a subset of $T$, otherwise we would have $a in T$, which is not the case.

$S$ is not an element of $T$, otherwise we would have $a,b in T$, which is not the case.

share|cite|improve this answer

answered Aug 1 at 11:41

Fred

37k1237

$S$ is not a subset of $T$, otherwise we would have $a in T$, which is not the case.

$S$ is not an element of $T$, otherwise we would have $a,b in T$, which is not the case.

share|cite|improve this answer

answered Aug 1 at 11:41

Fred

37k1237

share|cite|improve this answer

share|cite|improve this answer

answered Aug 1 at 11:41

Fred

37k1237

answered Aug 1 at 11:41

Fred

37k1237

answered Aug 1 at 11:41

Fred

37k1237

37k1237

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  This was a correct answer when it was posted -- a few minutes later the OP changed the question once again ...
  – Henning Makholm
  Aug 1 at 11:46
  

  
  
  
  

add a comment | 

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  This was a correct answer when it was posted -- a few minutes later the OP changed the question once again ...
  – Henning Makholm
  Aug 1 at 11:46
  

  
  
  
  

2

2

This was a correct answer when it was posted -- a few minutes later the OP changed the question once again ...
– Henning Makholm
Aug 1 at 11:46

This was a correct answer when it was posted -- a few minutes later the OP changed the question once again ...
– Henning Makholm
Aug 1 at 11:46

add a comment | 

up vote
0
down vote

No and no, because $a neq a$ and $b neq b$.

To (i): It is

$$a, b subset T,$$

but

$$a, b notsubset T.$$

To (ii): It is

$$a in T text and b in T, $$

but

$$ a,b notin T. $$

share|cite|improve this answer

answered Aug 1 at 11:46

til

694

add a comment | 

up vote
0
down vote

No and no, because $a neq a$ and $b neq b$.

To (i): It is

$$a, b subset T,$$

but

$$a, b notsubset T.$$

To (ii): It is

$$a in T text and b in T, $$

but

$$ a,b notin T. $$

share|cite|improve this answer

answered Aug 1 at 11:46

til

694

add a comment | 

up vote
0
down vote

up vote
0
down vote

No and no, because $a neq a$ and $b neq b$.

To (i): It is

$$a, b subset T,$$

but

$$a, b notsubset T.$$

To (ii): It is

$$a in T text and b in T, $$

but

$$ a,b notin T. $$

share|cite|improve this answer

answered Aug 1 at 11:46

til

694

No and no, because $a neq a$ and $b neq b$.

To (i): It is

$$a, b subset T,$$

but

$$a, b notsubset T.$$

To (ii): It is

$$a in T text and b in T, $$

but

$$ a,b notin T. $$

share|cite|improve this answer

answered Aug 1 at 11:46

til

694

share|cite|improve this answer

share|cite|improve this answer

answered Aug 1 at 11:46

til

694

answered Aug 1 at 11:46

til

694

answered Aug 1 at 11:46

til

694

694

add a comment | 

add a comment | 

up vote
0
down vote

Edit : Since the question had two different versions, I'm gonna reply to both.

Case where $S = a,b$ :

$S$ would have been a subset of T if the elements $a$ and $b$ were contained in $T$ (example : $T = a,b,c,d,e,f,a,b$), and $S$ would have been an element of $T$ if... Well, if a,b was an element of T (example : $T = a,b,c,d,e,f,a,b$), so $S$ is neither a subset nor an element of $T$.

---

Case where $S = a,b$ :

$S$ is a subset of $T$ since all elements of $S$ are elements of $T$.

$S$ would have been an element of $T$ if the element $a,b$ was an element of $T$.

share|cite|improve this answer

edited Aug 1 at 11:54

answered Aug 1 at 11:39

Pakos

11

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  "Contained in" is not good wording to use in an explanation for a confused beginner, because that wording is used both for subsets and for elements, by people who trust their audience can resolve the ambiguity on their own.
  – Henning Makholm
  Aug 1 at 11:43
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  But doesn't my example in parenthesis resolves the ambiguity ?
  – Pakos
  Aug 1 at 11:56
  

  
  
  
  

add a comment | 

up vote
0
down vote

Edit : Since the question had two different versions, I'm gonna reply to both.

Case where $S = a,b$ :

$S$ would have been a subset of T if the elements $a$ and $b$ were contained in $T$ (example : $T = a,b,c,d,e,f,a,b$), and $S$ would have been an element of $T$ if... Well, if a,b was an element of T (example : $T = a,b,c,d,e,f,a,b$), so $S$ is neither a subset nor an element of $T$.

---

Case where $S = a,b$ :

$S$ is a subset of $T$ since all elements of $S$ are elements of $T$.

$S$ would have been an element of $T$ if the element $a,b$ was an element of $T$.

share|cite|improve this answer

edited Aug 1 at 11:54

answered Aug 1 at 11:39

Pakos

11

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  "Contained in" is not good wording to use in an explanation for a confused beginner, because that wording is used both for subsets and for elements, by people who trust their audience can resolve the ambiguity on their own.
  – Henning Makholm
  Aug 1 at 11:43
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  But doesn't my example in parenthesis resolves the ambiguity ?
  – Pakos
  Aug 1 at 11:56
  

  
  
  
  

add a comment | 

up vote
0
down vote

up vote
0
down vote

Edit : Since the question had two different versions, I'm gonna reply to both.

Case where $S = a,b$ :

$S$ would have been a subset of T if the elements $a$ and $b$ were contained in $T$ (example : $T = a,b,c,d,e,f,a,b$), and $S$ would have been an element of $T$ if... Well, if a,b was an element of T (example : $T = a,b,c,d,e,f,a,b$), so $S$ is neither a subset nor an element of $T$.

---

Case where $S = a,b$ :

$S$ is a subset of $T$ since all elements of $S$ are elements of $T$.

$S$ would have been an element of $T$ if the element $a,b$ was an element of $T$.

share|cite|improve this answer

edited Aug 1 at 11:54

answered Aug 1 at 11:39

Pakos

11

Edit : Since the question had two different versions, I'm gonna reply to both.

Case where $S = a,b$ :

$S$ would have been a subset of T if the elements $a$ and $b$ were contained in $T$ (example : $T = a,b,c,d,e,f,a,b$), and $S$ would have been an element of $T$ if... Well, if a,b was an element of T (example : $T = a,b,c,d,e,f,a,b$), so $S$ is neither a subset nor an element of $T$.

---

Case where $S = a,b$ :

$S$ is a subset of $T$ since all elements of $S$ are elements of $T$.

$S$ would have been an element of $T$ if the element $a,b$ was an element of $T$.

share|cite|improve this answer

edited Aug 1 at 11:54

answered Aug 1 at 11:39

Pakos

11

share|cite|improve this answer

share|cite|improve this answer

edited Aug 1 at 11:54

edited Aug 1 at 11:54

edited Aug 1 at 11:54

answered Aug 1 at 11:39

Pakos

11

answered Aug 1 at 11:39

Pakos

11

answered Aug 1 at 11:39

Pakos

11

11

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  "Contained in" is not good wording to use in an explanation for a confused beginner, because that wording is used both for subsets and for elements, by people who trust their audience can resolve the ambiguity on their own.
  – Henning Makholm
  Aug 1 at 11:43
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  But doesn't my example in parenthesis resolves the ambiguity ?
  – Pakos
  Aug 1 at 11:56
  

  
  
  
  

add a comment | 

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  "Contained in" is not good wording to use in an explanation for a confused beginner, because that wording is used both for subsets and for elements, by people who trust their audience can resolve the ambiguity on their own.
  – Henning Makholm
  Aug 1 at 11:43
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  But doesn't my example in parenthesis resolves the ambiguity ?
  – Pakos
  Aug 1 at 11:56
  

  
  
  
  

2

2

"Contained in" is not good wording to use in an explanation for a confused beginner, because that wording is used both for subsets and for elements, by people who trust their audience can resolve the ambiguity on their own.
– Henning Makholm
Aug 1 at 11:43

"Contained in" is not good wording to use in an explanation for a confused beginner, because that wording is used both for subsets and for elements, by people who trust their audience can resolve the ambiguity on their own.
– Henning Makholm
Aug 1 at 11:43

But doesn't my example in parenthesis resolves the ambiguity ?
– Pakos
Aug 1 at 11:56

But doesn't my example in parenthesis resolves the ambiguity ?
– Pakos
Aug 1 at 11:56

add a comment |