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Theorem 19.23h 1802
Description: Theorem 19.23 of [Margaris] p. 90. (Contributed by NM, 5-Aug-1993.) (Revised by Mario Carneiro, 24-Sep-2016.) (Proof shortened by Wolf Lammen, 1-Jan-2018.)
Hypothesis
Ref Expression
19.23h.1
Assertion
Ref Expression
19.23h

Proof of Theorem 19.23h
StepHypRef Expression
1 19.23h.1 . . 3
21nfi 1551 . 2  F/
3219.23 1801 1
Colors of variables: wff setvar class
Syntax hints:   wi 4   wb 176  wal 1540  wex 1541
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1546  ax-5 1557  ax-17 1616  ax-9 1654  ax-8 1675  ax-6 1729  ax-11 1746
This theorem depends on definitions:  df-bi 177  df-ex 1542  df-nf 1545
This theorem is referenced by:  exlimihOLD  1805  equsalhw  1838
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