@[email protected] to No Stupid [email protected] • 2 years agoIs "If A then B" equal to "B if and only if A"?message-square24fedilinkarrow-up135
arrow-up135message-squareIs "If A then B" equal to "B if and only if A"?@[email protected] to No Stupid [email protected] • 2 years agomessage-square24fedilink
minus-squarekrdolinkfedilink1•2 years agoThe first statement only tells you when B is true. It says nothing about when it is false. The second statement both tells you when B is true (if A) and when it is not (only if A). Therefore, the two statements cannot be equal.
The first statement only tells you when B is true. It says nothing about when it is false. The second statement both tells you when B is true (if A) and when it is not (only if A). Therefore, the two statements cannot be equal.