!= or /= or basically the not equal sign

"~=" in matlab

¬ is the logical "NOT" in mathematics and physics (same language )
∧ is AND
∨ is OR
⊻ is XOR
∀ is For any... or - Universal quantifier
∃ is "There exist" or - Existence quantifier
∃! is There exist only one..." - or - Uniqueness quantifier
≡ is definition, sometimes := or :⇔

etc,etc...

Currently I have two languages of choice. In one of them, I write

In the other, it's


In both cases, I'm typing into a shell, and the second line represents the computer's response.

U should rather have interpreted this as a division of 'foo' by '=bar', if that was your initial line of thought...

I know that != is a not equals to sign, but didn't know /= is also a not equals to sign.
< And > is less than and greater than sign.