No Stupid Questions@lemmy.world · 7 months ago

Is "If A then B" equal to "B if and only if A"?

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No Stupid Questions@lemmy.world · 7 months ago

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Rhynoplaz@lemmy.world
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7 months ago
Wait. If they are effectively the same statement, wouldn’t that mean they ARE equal?
- Thoth19@lemmy.world
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  I mean it is the definition of “if and only if”. And by commutativity we also know that A iff B is equal to B iff A

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