Zulip Chat Archive

Stream: Is there code for X?

Topic: Monoidal functor from preserves limits/colimits


Jack J Garzella (Sep 01 2022 at 17:39):

Say we have a functor F:CD \mathcal{F} : C \to D. I'm trying to deduce that various functors are lax monoidal from the fact that they preserve limits, given that both monoidal categories in question CC and DD are defined such that the tensor and the identity are defined using limits, i.e. monoidal_of_has_finite_proudcts or monoidal_of_chosen_finite_products.

Is there code in mathlib that does this? If not, how would I attempt to state a lemma that captures this?

Side notes:
*Though I only need to show that such functors are lax monoidal, they are in fact monoidal functors, so it might be nice to also show this.
*Eventually, I'll want to do the same thing but with monoidal categories whose monoidal structures are colimits, like e.g. RR-modules with tensor product.


Last updated: Dec 20 2023 at 11:08 UTC