Commit 2022-10-25 00:26 5b294cfe

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feat(data/{finset,set}/basic): A nonempty set of a subsingleton is univ (#16965) Also provide nonempty.coe_sort and nontrivial.coe_sort aliases for dot notation.

Estimated changes

Modified archive/100-theorems-list/82_cubing_a_cube.lean

Modified src/analysis/normed_space/is_R_or_C.lean

Modified src/analysis/seminorm.lean

Modified src/data/finset/basic.lean

Modified src/data/fintype/basic.lean

added theorem finset.nonempty.eq_univ

Modified src/data/set/basic.lean

added theorem set.nonempty.eq_univ

deleted theorem set.nontrivial_coe

added theorem set.nontrivial_coe_sort

Modified src/measure_theory/function/jacobian.lean

Modified src/topology/algebra/semigroup.lean