Nuprl - Proof: es-first-exists 1 1 1

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At: es-first-exists 1 1 1

1. es : ES
2. WellFnd{i}(E;x,y.(x <loc y))
3. j : E
4.

k:E. (k <loc j)

(

e:E. first(e) & e

k )
5. first(j)

By:	Unfold `es-le` 0 THEN OrRight

Generated subgoals:

None

About:

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