Primary Logic

A term sometimes used to refer to basic, foundational, or intuitive logic – often contrasted with higher-order or specialized logics. In the context of non-classical logic discussions, “primary logic” might mean classical propositional logic (and, or, not, implies) as the baseline from which deviations are measured. Some also use it to refer to a hypothetical “core logic” common to all rational beings. However, the term is not standard. In online debates, invoking “primary logic” often signals an appeal to simple, common-sense reasoning against what the speaker considers obscurantism: “Let’s stick to primary logic instead of all these fancy paraconsistent games.” The problem is that what counts as “primary” is contested.

Example: “When she started talking about paraconsistent logic, he interrupted: ‘I’m going to stick with primary logic: if you contradict yourself, you’re wrong. End of story.’ She pointed out that his ‘primary logic’ fails to model real-world contradictions.”

Primary Logic by Dumu The Void May 27, 2026