Definitions hol list 1 Sections HOLlib Doc
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Some definitions of interest.
decidableDef Dec(P) == P  P
Thm* A:Prop. Dec(A Prop
mtDef mt(l) == Case of l; nil  True ; a.as'  False
Thm* 'a:Type{i}, l:'a List. mt(l Prop{1}

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

Definitions hol list 1 Sections HOLlib Doc