Deviant logic

Philosopher Susan Haack uses the term "deviant logic" to describe certain non-classical systems of logic. In these logics, * the set of well-formed formulas generated equals the set of well-formed formulas generated by classical logic. * the set of theorems generated is different from the set of theorems generated by classical logic.

Deviant logic

Philosopher Susan Haack uses the term "deviant logic" to describe certain non-classical systems of logic. In these logics, * the set of well-formed formulas generated equals the set of well-formed formulas generated by classical logic. * the set of theorems generated is different from the set of theorems generated by classical logic.