compact proofs using new induction lemma on Z

Status Job ID Name Coverage
  Build
canceled #35634
fp
build-coq.8.10.dev

canceled #35640
fp
build-coq.8.7.2

canceled #35639
fp-timing
build-coq.8.8.0

canceled #35638
fp
build-coq.8.8.1

canceled #35637
fp
build-coq.8.8.2

canceled #35636
fp-timing
build-coq.8.9.0

canceled #35635
fp
build-coq.8.9.1

canceled #35633
fp
build-coq.dev