Cote n° 116 · pages 2–9 · 3 commutative diagrams · Mapping-cône etc. : notes manuscrites (s.d.).
Inventory dating : [à partir de 1981]
Édition de démonstration

batch 1 · p. 2 — read it beside the facsimile1 / 3
LaTeX source
\begin{tikzcd}[row sep=large, column sep=large]
b_0 \arrow[r, "p"] \arrow[d] & b' \\
b_0 \arrow[ur, "p"'] &
\end{tikzcd}
batch 1 · p. 2 — read it beside the facsimile2 / 3
LaTeX source
\begin{tikzcd}[column sep=huge]
\widehat{A}_0 \arrow[r, "i_{!}", bend left=25] \arrow[r, "i_{*}"', bend right=25] & \widehat{A} \arrow[l, "i^{0}" description]
\end{tikzcd}
batch 1 · p. 9 — read it beside the facsimile3 / 3
LaTeX source
\begin{tikzcd}
A \arrow[d] & A' \arrow[l] \arrow[d] \\
B & B' \arrow[l]
\end{tikzcd}