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Mirrors > Home > ILE Home > Th. List > r19.26-3 | Unicode version |
Description: Theorem 19.26 of [Margaris] p. 90 with 3 restricted quantifiers. (Contributed by FL, 22-Nov-2010.) |
Ref | Expression |
---|---|
r19.26-3 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-3an 887 | . . 3 | |
2 | 1 | ralbii 2330 | . 2 |
3 | r19.26 2441 | . 2 | |
4 | r19.26 2441 | . . . 4 | |
5 | 4 | anbi1i 431 | . . 3 |
6 | df-3an 887 | . . 3 | |
7 | 5, 6 | bitr4i 176 | . 2 |
8 | 2, 3, 7 | 3bitri 195 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 97 wb 98 w3a 885 wral 2306 |
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 1336 ax-gen 1338 ax-4 1400 ax-17 1419 |
This theorem depends on definitions: df-bi 110 df-3an 887 df-tru 1246 df-nf 1350 df-ral 2311 |
This theorem is referenced by: (None) |
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