> [!NOTE] Definition > A connective takes one or more sentences or wff and forms a new sentence wff from them. # Properties > [!NOTE] Definition (truth functional) > A connective is **truth functional** iff the truth value of the complex sentence built up using the connective is completely determined by the truth values of the simpler sentence from which it is built. ^e0da44 > [!Example] > > - Implies is not truth functional. > - Connectives of [[L1 (FOL)]] are truth functional.