Typeclasses: use once in by clause for typeclass eauto
Typeclasses: use once in by clause for typeclass eauto

Otherwise we may backtrack on the resolution in a
by which seems strange.

maximedenes/coq,william-lawvere/coq,gares/coq,Lionel-Rieg/coq,gares/coq,gares/coq,maximedenes/coq,Zimmi48/coq,ejgallego/coq,Matafou/coq,ejgallego/coq,letouzey/coq-wip,Zimmi48/coq,ppedrot/coq,ejgallego/coq,JasonGross/coq,JasonGross/coq,letouzey/coq-wip,letouzey/coq-wip,ejgallego/coq,amintimany/coq,Matafou/coq,Lionel-Rieg/coq,amintimany/coq,Ptival/coq,gares/coq,JasonGross/coq,ppedrot/coq,SkySkimmer/coq,Zimmi48/coq,letouzey/coq-wip,coq/coq,william-lawvere/coq,maximedenes/coq,amintimany/coq,letouzey/coq-wip,coq/coq,maximedenes/coq,coq/coq,ppedrot/coq,silene/coq,JasonGross/coq,coq/coq,ppedrot/coq,Zimmi48/coq,maximedenes/coq,Lionel-Rieg/coq,SkySkimmer/coq,william-lawvere/coq,gares/coq,ppedrot/coq,SkySkimmer/coq,SkySkimmer/coq,silene/coq,Ptival/coq,Ptival/coq,Matafou/coq,silene/coq