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logic
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=====
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2014-12-15 16:13:04 -05:00
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Logical constructions and theorems, beyond what has already been
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declared in init.datatypes and init.logic.
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The subfolder logic.axioms declares additional axioms. The command
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`import logic` does not import any axioms by default.
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2014-10-05 10:50:13 -07:00
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2014-12-15 16:13:04 -05:00
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* [connectives](connectives.lean) : the propositional connectives
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* [eq](eq.lean) : additional theorems for equality and disequality
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* [cast](cast.lean) : casts and heterogeneous equality
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* [quantifiers](quantifiers.lean) : existential and universal quantifiers
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* [identities](identities.lean) : some useful identities
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* [instances](instances.lean) : class instances for eq and iff
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* [subsingleton](subsingleton.lean)
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* [default](default.lean)
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Subfolders:
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2014-08-01 10:37:55 -07:00
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* [axioms](axioms/axioms.md) : additional axioms
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2014-08-22 18:10:22 -07:00
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* [examples](examples/examples.md)
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