If and only if

Jump to: navigation, search
Stub grade: C
This page is a stub
This page is a stub, so it contains little or minimal information and is on a to-do list for being expanded.The message provided is:
Not important, as I assume readers know this by default

Logical equivalence

If [ilmath]A\iff B[/ilmath] ([ilmath]\iff[/ilmath] denotes "if and only if") then [ilmath]A[/ilmath] is logically equivalent to [ilmath]B[/ilmath]