Why 2!=3?

Question

Why 2 != 3 ?

Answer 1

Because in maths it is agreed that if x = y is true, then x and y are the same value.

If x and y are the same value then where ever you use x, you should be able to use y and where ever you use y, you should be able to use x, to get the same result.

x ≠ y is a negation of x = y, which means:
when x = y is true, then x ≠ y is false
and:
when x = y is false, then x ≠ y is true

In programming we use != instead of ≠, maybe because ≠ is not supported by ASCII.

(Also in programming we use == instead of =, because = is reserved for assigning variables.)

2 != 3 is true, because 2 == 3 is false.
2 == 3 is false because 2 and 3 are not the same value.

Answer 2

2 not equal to 3.
How difficult is that to understand.

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Answer 3

The summary of the question is ambiguous. It could read 2! = 3, which is true. Of course, the 'description' doesn't confirm that. Disregarding this; The only tag we have, here, is 'math', not any kind of programming language. 2- factorial equals 3. I think OP is just trying to troll us and she already knew the right answer.