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Theorem 19.23ht 1383
Description: Closed form of Theorem 19.23 of [Margaris] p. 90. (Contributed by NM, 7-Nov-2005.) (Revised by Mario Carneiro, 1-Feb-2015.)
Assertion
Ref Expression
19.23ht

Proof of Theorem 19.23ht
StepHypRef Expression
1 ax-ie2 1380 1
Colors of variables: wff set class
Syntax hints:   wi 4   wb 98  wal 1240  wex 1378
This theorem was proved from axioms:  ax-ie2 1380
This theorem is referenced by:  19.23h  1384  exlimd2  1483  19.9ht  1529
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