Definition of protothetic in English:

protothetic

noun

Logic
  • An axiomatic system of propositional logic developed by Stanisław Leśniewski (1886–1939) which allows quantification of propositions and of functions of propositions.

Origin

1940s; earliest use found in Journal of Symbolic Logic. From German protothetik from ancient Greek πρωτο- + -θετικός.

Pronunciation

protothetic

/ˌprəʊtə(ʊ)ˈθɛtɪk/