Definitions hol sum Sections HOLlib Doc
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Some definitions of interest.
hsumDef hsum('a'b) == 'a+'b
Thm* 'a,'b:S. hsum('a'b S
stypeDef S == {T:Type| x:T. True }
Thm* S  Type{2}

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

Definitions hol sum Sections HOLlib Doc