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Metamath
Home
Mathematics
Area of mathematics
Formalization of mathematics
Proof assistant
List of proof assistants
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Words: 5
metamath.org/
It seems to implement
Zermelo-Fraenkel set theory
.
Ancestors
(6)
List of proof assistants
Proof assistant
Formalization of mathematics
Area of mathematics
Mathematics
Home
Incoming links
(2)
Propositional logic
Website front-end for a mathematical formal proof system