Question

the combination of a conditional statement and its converse

Answer 1

this is called 'bi-conditional' statement, also known as 'if and only if '

Answer 2

a conditional statement\[A\implies B\](read as: 'If A, then B' or 'A implies B' )

the converse of the statement\[B\implies A\]

When both the statement and its converse are necessarily true
then \[A\iff B\](we say 'A and B are logically equivalent', or 'A, if and only if B', or just 'A iff B' )

Answer 3

* When both the statement and its converse are both necessarily true, or both necessarily false*
then