IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
one one corr fams sym111 1. A : Type
2. A' : Type
3. B : AType
4. B' : A'Type
5. f : AA' 6. g : A'A 7. F : x:AB(x)B'(f(x))
8. G : x:AB'(f(x))B(x)
9. InvFuns(A;A';f;g)
10. u:A. InvFuns(B(u);B'(f(u));F(u);G(u))
F:(x':A'B'(x')B(g(x'))), G:(x':A'B(g(x'))B'(x')).
InvFuns(A';A;g;f) & (u:A'. InvFuns(B'(u);B(g(u));F(u);G(u)))
By:
G o gx':A'B'(x')B(g(x')) | F o gx':A'B(g(x'))B'(x') Asserted
11. G o gx':A'B'(x')B(g(x'))
12. F o gx':A'B(g(x'))B'(x')
F:(x':A'B'(x')B(g(x'))), G:(x':A'B(g(x'))B'(x')).
InvFuns(A';A;g;f) & (u:A'. InvFuns(B'(u);B(g(u));F(u);G(u)))
7 steps
About:
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html