Theorems · Definition · category theory

CategoryTheory.Prod.fst

(C : Type u₁) →
  [inst : CategoryTheory.Category.{v₁, u₁} C] →
    (D : Type u₂) → [inst_1 : CategoryTheory.Category.{v₂, u₂} D] → CategoryTheory.Functor (C × D) C

fst is the functor (X, Y) ↦ X.

Defined in

Mathlib.CategoryTheory.Products.Basic

Cited by

51 results in Mathlib

Foundations

Depth 12 from the axioms · uses propext

Assumes

CategoryTheory.CategoryCategoryTheory.Category