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Theorem 19.23 1819
 Description: Theorem 19.23 of [Margaris] p. 90. (Contributed by NM, 5-Aug-1993.) (Revised by Mario Carneiro, 24-Sep-2016.)
Hypothesis
Ref Expression
19.23.1
Assertion
Ref Expression
19.23

Proof of Theorem 19.23
StepHypRef Expression
1 19.23.1 . 2
2 19.23t 1818 . 2
31, 2ax-mp 8 1
 Colors of variables: wff set class Syntax hints:   wi 4   wb 177  wal 1549  wex 1550  wnf 1553 This theorem is referenced by:  19.23h  1820  exlimi  1821  exlimdOLD  1825  nf2  1889  19.23v  1914  pm11.53  1916  equsal  1999  ax10-16  2267  r19.3rz  3719  ralidm  3731  ax10ext  27583  pm11.53OLD7  29700 This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1555  ax-5 1566  ax-17 1626  ax-9 1666  ax-8 1687  ax-6 1744  ax-11 1761 This theorem depends on definitions:  df-bi 178  df-ex 1551  df-nf 1554
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