Lemma 5.8.2. from the book #3038

Job	Run time
quick-build (supported, ubuntu-latest)	3m 15s
quick-build (latest, ubuntu-latest)	3m 17s
opam-build (supported, ubuntu-latest)	5m 1s
build (supported)	3m 26s
nix	2m 30s
opam-build (latest, ubuntu-latest)	4m 47s
quick-build (dev, ubuntu-latest)	3m 15s
build (latest)	3m 20s
opam-build (dev, ubuntu-latest)	4m 40s
build (dev, --warnings)	3m 15s
doc-alectryon	15m 14s
doc-dep-graphs	7m 33s
coqchk (supported)	2m 4s
doc-coqdoc	1m 30s
coqchk (latest)	1m 59s
doc-timing	1m 37s
coqchk (dev)	1m 43s
install (supported)	1m 46s
install (latest)	1m 41s
install (dev)	1m 41s
deploy-doc	0s
delete-artifacts	8s
	1h 13m 42s

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