Def  == Unit+Unit

is mentioned by

Def res_abstract == P:'a. f:'a'b. res_lambda('a;'b;x.P(x);x.f(x))	[hres_abstract]
Def res_select == P:'a. Q:'a. res_choose('a;x.(P(x));x.(Q(x)))	[hres_select]
Def res_exists == P:'a. Q:'a. res_exists('a;x.(P(x));x.(Q(x)))	[hres_exists]
Def res_forall == P:'a. Q:'a. res_all('a;x.(P(x));x.(Q(x)))	[hres_forall]

In prior sections: bool 1 hol hol bool hol min

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