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Theorem 19.21t 1790
 Description: Closed form of Theorem 19.21 of [Margaris] p. 90. (Contributed by NM, 27-May-1997.) (Revised by Mario Carneiro, 24-Sep-2016.)
Assertion
Ref Expression
19.21t

Proof of Theorem 19.21t
StepHypRef Expression
1 id 19 . . . 4
21nfrd 1743 . . 3
3 alim 1545 . . 3
42, 3syl9 66 . 2
5 nfa1 1756 . . . . . 6
65a1i 10 . . . . 5
71, 6nfimd 1761 . . . 4
87nfrd 1743 . . 3
9 sp 1716 . . . . 5
109imim2i 13 . . . 4
1110alimi 1546 . . 3
128, 11syl6 29 . 2
134, 12impbid 183 1
 Colors of variables: wff set class Syntax hints:   wi 4   wb 176  wal 1527  wnf 1531 This theorem is referenced by:  19.21  1791  sbcom  2029  sbal2  2073  ax11indalem  2136  ax11inda2ALT  2137  r19.21t  2628  ceqsalt  2810  sbciegft  3021 This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1533  ax-5 1544  ax-17 1603  ax-9 1635  ax-8 1643  ax-6 1703  ax-11 1715 This theorem depends on definitions:  df-bi 177  df-an 360  df-nf 1532
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