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Single Idea 13822

[from 'Intermediate Logic' by David Bostock, in 5. Theory of Logic / A. Overview of Logic / 6. Classical Logic ]

Full Idea

Discourse about fictional characters leads to a breakdown of elementary logic. We accept P or ¬P if the relevant story says so, but P∨¬P will not be true if the relevant story says nothing either way, and P∧¬P is true if the story is inconsistent.

Gist of Idea

Fictional characters wreck elementary logic, as they have contradictions and no excluded middle

Source

David Bostock (Intermediate Logic [1997], 8.5)

Book Reference

Bostock,David: 'Intermediate Logic' [OUP 1997], p.357


A Reaction

I really like this. Does one need to invent a completely new logic for fictional characters? Or must their logic be intuitionist, or paraconsistent, or both?