There are two types of conditions: Necessary and Sufficient.
Necessary Condition is a condition where one 202204281244 solely depends on another statement. This could be expressed in 202205062055# as “if not \(r\), then not \(s\)”. “If \(s\) then \(r\)” means the same thing.
Sufficient Condition is a condition where one statement is sufficient to guarantee the occurrence of another statement. When expressed in conditional statement, this means that “if \(r\) then \(s\)”.
If a condition is both necessary and sufficient, this implies biconditional statement#. The statement “\(r\) if, and only if \(s\)” expresses such condition.