Kybernetika

A \ddp~ is introduced in the classical logic using the Frank family of $t$-norms known from fuzzy logics. In the quantum logic a \ddq\ is added corresponding to the level of noncompatibility. Further, in the case of the fuzzy logic with $P$-states, (resp. $T$-states) the consideration turned out to be fully analogous to (resp. considerably different from) the classical situation.