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Mirrors > Home > ILE Home > Th. List > r19.44mv | Unicode version |
Description: Restricted version of Theorem 19.44 of [Margaris] p. 90. (Contributed by NM, 27-May-1998.) |
Ref | Expression |
---|---|
r19.44mv |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | r19.43 2648 |
. 2
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2 | r19.9rmv 3529 |
. . 3
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3 | 2 | orbi2d 791 |
. 2
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4 | 1, 3 | bitr4id 199 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-ext 2171 |
This theorem depends on definitions: df-bi 117 df-cleq 2182 df-clel 2185 df-rex 2474 |
This theorem is referenced by: frecabcl 6425 |
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