Lafari@lemmy.world to No Stupid Questions@lemmy.world · 6 months agoIs "If A then B" equal to "B if and only if A"?message-squaremessage-square59fedilinkarrow-up144arrow-down110
arrow-up134arrow-down1message-squareIs "If A then B" equal to "B if and only if A"?Lafari@lemmy.world to No Stupid Questions@lemmy.world · 6 months agomessage-square59fedilink
minus-squareThoth19@lemmy.worldlinkfedilinkarrow-up1·6 months agoI 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
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