Def i=j == if i=j true ; false fi

is mentioned by

Thm* i,j:enum1(). i = j  ((i=j) ~ false)	[eq_enum1_eq_false_intro]
Thm* i,j:enum1(). i = j  ((i=j) ~ true)	[eq_enum1_eq_true_intro]
Def Case v => case cont(x) == if x=v case else cont(x) fi	[switch_case]

In prior sections: bool 1 sqequal 1

Try larger context: StandardLIB IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html