X5303 : %THEOREM%

X5303 is a theorem.
Exercise:
= = LAMBDA x(A) LAMBDA y(A) FORALL p(OAA) .FORALL z(A) p z z IMPLIES p x y
All rules and commands, including ADVICE, are allowed.
Only book theorems may be ASSERTed as lemmas without proof.
For a complete list of book theorems, type PROBLEMS.
No more help available. Sorry.

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