<*logic*>
A symbol that functions to join two or more propositions
into a compound
proposition. Sometimes applied to symbols (like "~" for
negation) which
apply only to one proposition at a time. Sometimes
applied to the function
denoted by the symbol, rather than the symbol itself.
A truth-functional connective is a truth-function; its
components are
its arguments and the truth-value of the compound it forms
is its value.
Truth-functional connectives that apply to
only one proposition
at a time are monadic;
those that join two propositions are dyadic; those that join
three are
triadic, and so on. Monadic connectives are also called
operators.

See truth-functional compound proposition

[Glossary of First-Order Logic]

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