ex-or - Intuitionistic Logic Explorer

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Theorem ex-or 14559

Description: Example for ax-io 709. Example by David A. Wheeler. (Contributed by Mario Carneiro, 9-May-2015.)

**Assertion**
Ref	Expression
ex-or	$\/$

**Proof of Theorem ex-or**
Step	Hyp	Ref	Expression
1		eqid 2177	. 2
2	1	olci 732	1 $\/$

Colors of variables: wff set class

Syntax hints: $\/$ wo 708

wceq 1353

c2 8972

c3 8973

c4 8974

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 709 ax-gen 1449 ax-ext 2159

This theorem depends on definitions: df-bi 117 df-cleq 2170

This theorem is referenced by: (None)