ZFLean supplies a relational calculus, canonical set constructions, and type bridges for ZFC mathematics in Lean 4 that reduce extensional boilerplate while remaining compatible with Mathlib.
AN ELEMENTARY THEORY OF THE CATEGORY OF SETS
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Four axioms of banking practice define a universal quotient Q_public through which all API morphisms factor epi-mono, with 14 jurisdictionally invariant dimensions confirmed by Gaussian elimination on 4590 endpoints and left skew monoidal structure.
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ZFLean: a framework for set-level mathematics in Lean
ZFLean supplies a relational calculus, canonical set constructions, and type bridges for ZFC mathematics in Lean 4 that reduce extensional boilerplate while remaining compatible with Mathlib.
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A Universal Quotient of Banking APIs
Four axioms of banking practice define a universal quotient Q_public through which all API morphisms factor epi-mono, with 14 jurisdictionally invariant dimensions confirmed by Gaussian elimination on 4590 endpoints and left skew monoidal structure.