@[email protected] to No Stupid [email protected] • 6 months agoIs "If A then B" equal to "B if and only if A"?message-square56fedilinkarrow-up151
arrow-up141message-squareIs "If A then B" equal to "B if and only if A"?@[email protected] to No Stupid [email protected] • 6 months agomessage-square56fedilink
minus-squarekrdolinkfedilink1•6 months 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.