Lemma 22.27.10. In Situation 22.27.2 let f: x \to y be a morphism in \text{Comp}(\mathcal{A}). The triangle (y, c(f), x[1], i, p, f[1]) is the triangle associated to the admissible short exact sequence
\xymatrix{y\ar[r] & c(f) \ar[r] & x[1]}
where the cone c(f) is defined as in Lemma 22.27.1.
Comments (0)