The terms positive logic and negative logic refer to two conventions that dictate the relationship between logical values and the physical voltages used to represent them. Although the core concepts ...

We study axiomatic extensions of the propositional constructive logic with strong negation having the disjunction property in terms of corresponding to them varieties ...

Although wrapping one’s brain around the concepts of positive, negative, and assertion-level logic can require some mental gymnastics, understanding these topics can be very rewarding. Although ...

Negation of simple clauses is formed with the negative particle not. There are two kinds of negation: simple sentence negation and contrastive negation. Let us start with sentence negation. At ...