The difference between If and only if and Logical connective
If and only if is also conjunction with the meaning: is equivalent to.
Logical connective is also noun with the meaning: a truth-valued function such as (the usual suspects): conjunction, disjunction, negation, and material implication.
check bellow for the other definitions of If and only if and Logical connective
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Logical connective as a noun (logic):
A truth-valued function such as (the usual suspects): conjunction, disjunction, negation, and material implication.