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Theorem finset.fiber_nonempty_iff_mem_image

Modification history

2022-12-08 18:41
src/data/finset/basic.lean
refactor(data/finset/image): split out of data/finset/basic (#17852) …
Modified finset.fiber_nonempty_iff_mem_imageView on Github →
2020-10-01 02:57
src/data/finset/basic.lean
feat(data/fintype): pigeonhole principles (#4096) …
Added finset.fiber_nonempty_iff_mem_imageView on Github →