Lafari@lemmy.world to No Stupid Questions@lemmy.world · 8 months agoIs "If A then B" equal to "B if and only if A"?message-squaremessage-square17fedilinkarrow-up10arrow-down10
arrow-up10arrow-down1message-squareIs "If A then B" equal to "B if and only if A"?Lafari@lemmy.world to No Stupid Questions@lemmy.world · 8 months agomessage-square17fedilink
minus-squareLafari@lemmy.worldOPlinkfedilinkarrow-up0·8 months agoIs “If B then A” equal to “B if and only if A”?
minus-squareThoth19@lemmy.worldlinkfedilinkarrow-up0·8 months agoNo. They are effectively the same statement. (A <=> B ) = (A=>B AND B=> A)
minus-squareRhynoplaz@lemmy.worldlinkfedilinkarrow-up0·8 months agoWait. If they are effectively the same statement, wouldn’t that mean they ARE equal?
Is “If B then A” equal to “B if and only if A”?
No. They are effectively the same statement.
(A <=> B ) = (A=>B AND B=> A)
Wait. If they are effectively the same statement, wouldn’t that mean they ARE equal?