Nuprl - Proof: inj imp le 1 1 2 1 1

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At: inj imp le 1 1 2 1 1

1. m :

2. 0<m
3.

k':

. (

f':(

(m-1)

k'). Inj(

(m-1);

k'; f'))

m-1

k'
4. k :

5. f :

m

k
6. Inj(

m;

k; f)
7. k-1

Inj(

(m-1);

(k-1); Replace value k-1 by f(m-1) in f)

By:	BackThru: Thm* Inj((m+1); (k+1); f) Inj(m; k; Replace value k by f(m) in f)

Generated subgoals:

None

About:

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

(7steps total) PfGloss PrintForm Definitions Lemmas DiscreteMath Sections DiscrMathExt Doc