X2137 : %THEOREM%

X2137 is a theorem.
Exercise:
EXISTS x(I) FORALL y(I) .P(OI) x IMPLIES Q(OI) x OR P y
You may not use ADVICE, but all other rules and commands 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.

TPS documentation homepage


© 1988-99, Carnegie Mellon University.

TPS homepage