Nuprl - Proof: member-es-before 2 1

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At: member-es-before 2 1

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

k:E. (k <loc j)

(

e:E. (e

before(k))

(e <loc k))
5. e : E
6.

first(j)
7. (e

before(pred(j)))

(e <loc pred(j))

before(pred(j)))

e = pred(j)

False

first(j) & e = pred(j)

(e <loc pred(j))

By:	Auto THEN SplitOrHyps THEN ThinTrivial THEN Try (OrRight THEN Trivial) THEN Try (OrLeft THEN Trivial) THEN Try ((OrRight THEN OrLeft) THEN Trivial)

Generated subgoals:

None

About:

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