%xm:XM. P(%xm)

	Who Cites xmiddle?
xmiddle	Def XM == P:Prop. Dec(P)
	Thm* XM{i}  Prop{i'}
decidable	Def Dec(P) == P  P
	Thm* A:Prop. Dec(A)  Prop
not	Def A == A  False
	Thm* A:Prop. (A)  Prop

Syntax:

XM

has structure:

xmiddle{i:l}

About: IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html