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Theorem r19.29r 2445
Description: Variation of Theorem 19.29 of [Margaris] p. 90 with restricted quantifiers. (Contributed by NM, 31-Aug-1999.)
Assertion
Ref Expression
r19.29r

Proof of Theorem r19.29r
StepHypRef Expression
1 r19.29 2444 . 2
2 ancom 253 . 2
3 ancom 253 . . 3
43rexbii 2325 . 2
51, 2, 43imtr4i 190 1
Colors of variables: wff set class
Syntax hints:   wi 4   wa 97  wral 2300  wrex 2301
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101  ax-5 1333  ax-gen 1335  ax-ie1 1379  ax-ie2 1380  ax-4 1397  ax-17 1416  ax-ial 1424
This theorem depends on definitions:  df-bi 110  df-tru 1245  df-nf 1347  df-ral 2305  df-rex 2306
This theorem is referenced by:  r19.29af2  2446
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