Symbol to show if a is greater than, less than, or equal to b?
0
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In some problems, one is asked to determine if the entity on the left hand side is greater than, less than, or equal to the entity on the right hand side. Is there a mathematical symbol to denote this? A proof in this case might proceed like:
To prove that a <the symbol> b
i.e. to prove that
...
proof-writing
asked Jan 7 at 1:27
Kedar MhaswadeKedar Mhaswade
1012
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add a comment |
0
$begingroup$
In some problems, one is asked to determine if the entity on the left hand side is greater than, less than, or equal to the entity on the right hand side. Is there a mathematical symbol to denote this? A proof in this case might proceed like:
To prove that a <the symbol> b
i.e. to prove that
...
proof-writing
asked Jan 7 at 1:27
Kedar MhaswadeKedar Mhaswade
1012
$endgroup$
2
$begingroup$
This info is packed in the value of $text{sgn}(a-b)$, the signum of $a-b$.
$endgroup$
– kimchi lover
Jan 7 at 1:33
2
$begingroup$
What's wrong with "Is $agt b$ or is $a lt b$ or is $a=b$?", and then proving that one and only one of those options must hold., and which one actually holds.
$endgroup$
– Namaste
Jan 7 at 1:35
1
$begingroup$
It's irritating but no there is no standard notation. But there's nothing wrong with saying "I will use the symbol BLAH to mean whichever of the relations, >,<, or = applies between terms. Now $2x + 5 BLAH 10a + 7$ if and only if $x BLAH 5a + 1$ so ....."
$endgroup$
– fleablood
Jan 7 at 1:40
2
$begingroup$
As has been pointed out, you could use $text{sgn}(a-b)$ if space is limited. However, it is far better just to say something like "let's prove which of $a$ and $b$ is larger, or if they are equal." That's far more readable. Frankly, I wouldn't even use the $>$/$<$/$=$ symbols.
$endgroup$
– Ben W
Jan 7 at 1:44
$begingroup$
Agree with others. Just use words. Mathematics doesn't always need to be decorated with strange symbols. And if the strange symbols reduced readability and comprehension, they should definitely not be used.
$endgroup$
– bubba
Jan 7 at 4:41
add a comment |
0
0
0
$begingroup$
In some problems, one is asked to determine if the entity on the left hand side is greater than, less than, or equal to the entity on the right hand side. Is there a mathematical symbol to denote this? A proof in this case might proceed like:
To prove that a <the symbol> b
i.e. to prove that
...
proof-writing
asked Jan 7 at 1:27
Kedar MhaswadeKedar Mhaswade
1012
$endgroup$
In some problems, one is asked to determine if the entity on the left hand side is greater than, less than, or equal to the entity on the right hand side. Is there a mathematical symbol to denote this? A proof in this case might proceed like:
To prove that a <the symbol> b
i.e. to prove that
...
proof-writing
proof-writing
asked Jan 7 at 1:27
Kedar MhaswadeKedar Mhaswade
1012
asked Jan 7 at 1:27
Kedar MhaswadeKedar Mhaswade
1012
asked Jan 7 at 1:27
Kedar MhaswadeKedar Mhaswade
1012
asked Jan 7 at 1:27
Kedar MhaswadeKedar Mhaswade
1012
asked Jan 7 at 1:27
Kedar MhaswadeKedar Mhaswade
1012
1012
2
$begingroup$
This info is packed in the value of $text{sgn}(a-b)$, the signum of $a-b$.
$endgroup$
– kimchi lover
Jan 7 at 1:33
2
$begingroup$
What's wrong with "Is $agt b$ or is $a lt b$ or is $a=b$?", and then proving that one and only one of those options must hold., and which one actually holds.
$endgroup$
– Namaste
Jan 7 at 1:35
1
$begingroup$
It's irritating but no there is no standard notation. But there's nothing wrong with saying "I will use the symbol BLAH to mean whichever of the relations, >,<, or = applies between terms. Now $2x + 5 BLAH 10a + 7$ if and only if $x BLAH 5a + 1$ so ....."
$endgroup$
– fleablood
Jan 7 at 1:40
2
$begingroup$
As has been pointed out, you could use $text{sgn}(a-b)$ if space is limited. However, it is far better just to say something like "let's prove which of $a$ and $b$ is larger, or if they are equal." That's far more readable. Frankly, I wouldn't even use the $>$/$<$/$=$ symbols.
$endgroup$
– Ben W
Jan 7 at 1:44
$begingroup$
Agree with others. Just use words. Mathematics doesn't always need to be decorated with strange symbols. And if the strange symbols reduced readability and comprehension, they should definitely not be used.
$endgroup$
– bubba
Jan 7 at 4:41
add a comment |
2
$begingroup$
This info is packed in the value of $text{sgn}(a-b)$, the signum of $a-b$.
$endgroup$
– kimchi lover
Jan 7 at 1:33
2
$begingroup$
What's wrong with "Is $agt b$ or is $a lt b$ or is $a=b$?", and then proving that one and only one of those options must hold., and which one actually holds.
$endgroup$
– Namaste
Jan 7 at 1:35
1
$begingroup$
It's irritating but no there is no standard notation. But there's nothing wrong with saying "I will use the symbol BLAH to mean whichever of the relations, >,<, or = applies between terms. Now $2x + 5 BLAH 10a + 7$ if and only if $x BLAH 5a + 1$ so ....."
$endgroup$
– fleablood
Jan 7 at 1:40
2
$begingroup$
As has been pointed out, you could use $text{sgn}(a-b)$ if space is limited. However, it is far better just to say something like "let's prove which of $a$ and $b$ is larger, or if they are equal." That's far more readable. Frankly, I wouldn't even use the $>$/$<$/$=$ symbols.
$endgroup$
– Ben W
Jan 7 at 1:44
$begingroup$
Agree with others. Just use words. Mathematics doesn't always need to be decorated with strange symbols. And if the strange symbols reduced readability and comprehension, they should definitely not be used.
$endgroup$
– bubba
Jan 7 at 4:41
2
2
$begingroup$
This info is packed in the value of $text{sgn}(a-b)$, the signum of $a-b$.
$endgroup$
– kimchi lover
Jan 7 at 1:33
$begingroup$
This info is packed in the value of $text{sgn}(a-b)$, the signum of $a-b$.
$endgroup$
– kimchi lover
Jan 7 at 1:33
2
2
$begingroup$
What's wrong with "Is $agt b$ or is $a lt b$ or is $a=b$?", and then proving that one and only one of those options must hold., and which one actually holds.
$endgroup$
– Namaste
Jan 7 at 1:35
$begingroup$
What's wrong with "Is $agt b$ or is $a lt b$ or is $a=b$?", and then proving that one and only one of those options must hold., and which one actually holds.
$endgroup$
– Namaste
Jan 7 at 1:35
1
1
$begingroup$
It's irritating but no there is no standard notation. But there's nothing wrong with saying "I will use the symbol BLAH to mean whichever of the relations, >,<, or = applies between terms. Now $2x + 5 BLAH 10a + 7$ if and only if $x BLAH 5a + 1$ so ....."
$endgroup$
– fleablood
Jan 7 at 1:40
$begingroup$
It's irritating but no there is no standard notation. But there's nothing wrong with saying "I will use the symbol BLAH to mean whichever of the relations, >,<, or = applies between terms. Now $2x + 5 BLAH 10a + 7$ if and only if $x BLAH 5a + 1$ so ....."
$endgroup$
– fleablood
Jan 7 at 1:40
2
2
$begingroup$
As has been pointed out, you could use $text{sgn}(a-b)$ if space is limited. However, it is far better just to say something like "let's prove which of $a$ and $b$ is larger, or if they are equal." That's far more readable. Frankly, I wouldn't even use the $>$/$<$/$=$ symbols.
$endgroup$
– Ben W
Jan 7 at 1:44
$begingroup$
As has been pointed out, you could use $text{sgn}(a-b)$ if space is limited. However, it is far better just to say something like "let's prove which of $a$ and $b$ is larger, or if they are equal." That's far more readable. Frankly, I wouldn't even use the $>$/$<$/$=$ symbols.
$endgroup$
– Ben W
Jan 7 at 1:44
$begingroup$
Agree with others. Just use words. Mathematics doesn't always need to be decorated with strange symbols. And if the strange symbols reduced readability and comprehension, they should definitely not be used.
$endgroup$
– bubba
Jan 7 at 4:41
$begingroup$
Agree with others. Just use words. Mathematics doesn't always need to be decorated with strange symbols. And if the strange symbols reduced readability and comprehension, they should definitely not be used.
$endgroup$
– bubba
Jan 7 at 4:41
add a comment |
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2
$begingroup$
This info is packed in the value of $text{sgn}(a-b)$, the signum of $a-b$.
$endgroup$
– kimchi lover
Jan 7 at 1:33
2
$begingroup$
What's wrong with "Is $agt b$ or is $a lt b$ or is $a=b$?", and then proving that one and only one of those options must hold., and which one actually holds.
$endgroup$
– Namaste
Jan 7 at 1:35
1
$begingroup$
It's irritating but no there is no standard notation. But there's nothing wrong with saying "I will use the symbol BLAH to mean whichever of the relations, >,<, or = applies between terms. Now $2x + 5 BLAH 10a + 7$ if and only if $x BLAH 5a + 1$ so ....."
$endgroup$
– fleablood
Jan 7 at 1:40
2
$begingroup$
As has been pointed out, you could use $text{sgn}(a-b)$ if space is limited. However, it is far better just to say something like "let's prove which of $a$ and $b$ is larger, or if they are equal." That's far more readable. Frankly, I wouldn't even use the $>$/$<$/$=$ symbols.
$endgroup$
– Ben W
Jan 7 at 1:44
$begingroup$
Agree with others. Just use words. Mathematics doesn't always need to be decorated with strange symbols. And if the strange symbols reduced readability and comprehension, they should definitely not be used.
$endgroup$
– bubba
Jan 7 at 4:41