Ajout de lemmes d'inversion pour mult (sur le modèle de plus_is_O et plus_is_one)
Ajout de lemmes d'inversion pour mult (sur le modèle de plus_is_O et plus_is_one)

git-svn-id: 44dc50bdcc0f5d1a212c497508dc9452e0b35e2b@10273 85f007b7-540e-0410-9357-904b9bb8a0f7

tomprince/coq,Lionel-Rieg/coq,william-lawvere/coq,JasonGross/coq,TheTypoMaster/coq,ale-f/coq,aspiwack/coq,gares/coq,Matafou/coq,amintimany/coq,JasonGross/coq,aspiwack/coq,asr/coq,herbelin/coq-hh,barras/coq,jpdeplaix/coq,8l/coq,ejgallego/coq,jpdeplaix/coq,coq/coq,TheTypoMaster/coq,Ptival/coq,ejgallego/coq,ale-f/coq,maximedenes/coq,letouzey/coq-wip,gares/coq,Lionel-Rieg/coq,Zimmi48/coq,JasonGross/coq,aspiwack/coq,maximedenes/coq,mattam82/coq,herbelin/github-coq,Zimmi48/coq,pirbo/coq,ppedrot/coq,mlasson/coq,amintimany/coq,TOSPIO/coq,TheTypoMaster/coq,maximedenes/coq,gares/coq,JasonGross/coq,TOSPIO/coq,coq/coq,pirbo/coq,gares/coq,pirapira/coq2rust,Matafou/coq,shindere/coq,ale-f/coq,mattam82/Coq-misc,mlasson/coq,silene/coq,mlasson/coq,silene/coq,gmalecha/coq,william-lawvere/coq,letouzey/coq-wip,letouzey/coq-wip,maximedenes/coq,jhjourdan/coq,tomprince/coq,gmalecha/coq,mattam82/Coq-misc,Zimmi48/coq,william-lawvere/coq,herbelin/coq-hh,Zimmi48/coq,8l/coq,ppedrot/coq,SkySkimmer/coq,pirapira/coq2rust,asr/coq,jhjourdan/coq,herbelin/github-coq,jpdeplaix/coq,letouzey/coq-wip,ppedrot/coq,Ptival/coq,asr/coq,amintimany/coq,mattam82/coq,SkySkimmer/coq,Ptival/coq,herbelin/github-coq,barras/coq,SkySkimmer/coq,pirapira/coq2rust,ejgallego/coq,shindere/coq,ejgallego/coq,silene/coq,gares/coq,SkySkimmer/coq,coq/coq,TOSPIO/coq,barras/coq,coq/coq,Lionel-Rieg/coq,tomprince/coq,Matafou/coq,maximedenes/coq,pirbo/coq,shindere/coq,gmalecha/coq,mattam82/coq,letouzey/coq-wip,jhjourdan/coq,8l/coq,ppedrot/coq,ppedrot/coq