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

@Lafari to

No Stupid Questions • 10 months ago

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10 months ago
“If X is cat, then X is mammal” =?> “X is mammal if and only if X is cat”

Obviously doesn’t hold: What if X doge?
- umulu
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  0•10 months ago
  Great analogy!

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