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roboq6 t1_itz2obq wrote

Correction, between things that CAN be different. It doesn't make sense to put equality symbol between things that are known to be different.

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keefemotif t1_itz4iq2 wrote

Then, we'd say it is the assignment operator not the equality operator.

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roboq6 t1_itz4vki wrote

No, it's the equality operator. It's just that when we solve an equation we assume that equality holds and proceed until we get possible solutions or a contradiction. If we got a contradiction, then it means that our assumption was false.

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keefemotif t1_itz6vp6 wrote

For many languages == is the equality operator and = is assignment. Proof by contradiction is definitely an important technique.

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roboq6 t1_itz70x8 wrote

I know. I was talking in context of mathematics.

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