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leave comment about functoriality of products following from symmetry
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Signed-off-by: Ali Caglayan <[email protected]>
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Alizter committed Jan 11, 2024
1 parent 244b5cd commit 7449583
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2 changes: 2 additions & 0 deletions theories/WildCat/Products.v
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Expand Up @@ -171,6 +171,8 @@ Class HasBinaryProducts (A : Type) `{Is1Cat A} := {
(** *** Product functor *)

(** Binary products are functorial in each argument. *)

(* TODO: jdchristensen: Another approach to handling functoriality on the right is to first prove that products are symmetric. Then functoriality on the right follows from functoriality on the left... *)
Global Instance is0functor_cat_prod_l {A : Type}
`{HasBinaryProducts A} y
: Is0Functor (fun x => cat_prod x y).
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