2 added 174 characters in body
source | link

"A only if B" and "if A, then B" mean the same.

The truth-condition for "if A, then B" excludes the case when A is True and B is False.

"A only if B" means that we cannot have A without B.

The two are equivalent.

See necessary and sufficient.

"A only if B" and "if A, then B" mean the same.

See necessary and sufficient.

"A only if B" and "if A, then B" mean the same.

The truth-condition for "if A, then B" excludes the case when A is True and B is False.

"A only if B" means that we cannot have A without B.

The two are equivalent.

See necessary and sufficient.

1
source | link

"A only if B" and "if A, then B" mean the same.

See necessary and sufficient.