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Theorem is_subfield_Union_of_directed

Modification history

2020-09-17 15:33
src/deprecated/subfield.lean
refactor(field-theory/subfield): bundled subfields (#4159) …
Modified is_subfield_Union_of_directedView on Github →
2019-04-07 16:29
src/field_theory/subfield.lean
feat(subgroup, subring, subfield): directed Unions of subrings are subrings (#889)
Added is_subfield_Union_of_directedView on Github →