Mathlib v3 is deprecated. Go to Mathlib v4

Theorem free_product.neword.replace_head_head

Modification history

2022-03-03 21:31
src/group_theory/free_product.lean
feat(group_theory/free_product): the 🏓-lemma (#12210) …
Added free_product.neword.replace_head_headView on Github →