Ensure no confusion with unit in rigid variables.
Ensure no confusion with unit in rigid variables.

coq/coq,gares/coq,coq/coq,SkySkimmer/coq,coq/coq,SkySkimmer/coq,Matafou/coq,ejgallego/coq,gares/coq,JasonGross/coq,Zimmi48/coq,silene/coq,gares/coq,Zimmi48/coq,Matafou/coq,gares/coq,Zimmi48/coq,silene/coq,Matafou/coq,Zimmi48/coq,JasonGross/coq,ejgallego/coq,JasonGross/coq,ejgallego/coq,gares/coq,ejgallego/coq,coq/coq,JasonGross/coq,silene/coq,SkySkimmer/coq,SkySkimmer/coq