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First-order logic with quantifiers, predicates, functions, and identity. Covers syntax, interpretation over a domain, the universal and existential quantifiers, quantifier scope and binding, translation from natural language with multi-variable predicates, natural deduction for quantifiers, undecidability at first order, and the soundness/completeness theorems. Use when propositional logic is insufficient -- whenever "for all" or "there exists" matters to the argument.

Install

npx skills add Tibsfox/gsd-skill-creator --skill predicate-logic -a claude-code

Installs to .claude/skills/predicate-logic/ · Each command fetches the skill straight from GitHub with the open skills CLI.

No download: this skill’s licence (Custom or unclear) does not let us redistribute its files. The install commands fetch them from GitHub instead.

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Maintenance70
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Adoption33

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