is mentioned by
Thm* IsEqFun(B;e) Thm* Thm* (a:, f:(a onto B). (y.least x:. (f(x)) e y) B inj a) | [nsub_surj_imp_a_rev_inj_gen] |
Thm* IsEqFun(B;e) (a:, f:(a onto B), y:B. f(least x:. (f(x)) e y) = y) | [nsub_surj_least_preimage_works_gen] |
Thm* IsEqFun(B;e) (a:, f:(a onto B), y:B. (least x:. (f(x)) e y) a) | [nsub_surj_least_preimage_total_gen] |
[eq_int_is_eq_nsub] |
In prior sections: rel 1 LogicSupplement
Try larger context:
DiscrMathExt
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html