standard ======== The Lean standard library. By default, `import standard` does not import the classical axioms. For that, use `import logic.axioms`. * [logic](logic/logic.md) : logical constructs and axioms * [data](data/data.md) : various datatypes * [struc](struc/struc.md) : axiomatic structures * [tools](tools/tool.md) : various additional tools