User:Nortexoid

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I enjoy cheese and symbols.

[edit] Interests

• logic (philosophical, mathematical, philosophy of)
• philosophy and foundations of mathematics
• proof and model theory
• philosophy of language
• ontology (of mathematics and modality)

[edit] Created articles

• Branching quantifier
• Predicate abstraction
• Empty domain
• Truth-value semantics
• Computation problem
• Free logic
• Proof procedure
• Trakhtenbrot's theorem
• Conditioned disjunction
• Lindenbaum's lemma
• Lindstrom's theorem
• Cyclic negation
• Supervaluationism
• Effectively calculable
• Craig's theorem
• Conditional quantifier
• Beth definability
• Classical modal logic
• Regular modal logic
• Finite model property
• Window operator