Liar Sentence
A liar sentence asserts its own falsity, like 'This sentence is false.'…
The Liar Paradox
The liar paradox is a self-referential statement that asserts its own falsity.…
Independence-Friendly Logic
Independence-Friendly (IF) logic extends first-order logic, enabling richer expressions of quantifier scope…
Imperative Logic
Imperative logic is a formal system for analyzing commands and imperatives, differing…
Henkin Sentence
A Henkin sentence is a self-referential statement that asserts its own provability…
Grelling Paradox
The Grelling paradox explores self-reference in language. It questions whether the word…
Geach-Kaplan Sentence
A sentence type probing philosophy of language and logic. It highlights issues…
Epistemic Paradox
An epistemic paradox challenges our fundamental understanding of knowledge and belief. It…
Dialethic Logic: Embracing True Contradictions
Dialethic logic, a philosophical approach, challenges the traditional law of non-contradiction by…
Curry’s Paradox
Curry's paradox is a logical paradox that emerges from self-referential statements asserting…