Theorem category_theory.monoidal_category.prod_monoidal_left_unitor_inv_fst
Modification history
2022-04-03 00:36
src/category_theory/monoidal/category.lean
feat(category_theory/monoidal): define monoidal structures on cartesian products of monoidal categories, (lax) monoidal functors and monoidal natural transformations (#13033) …
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