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Mirrors > Home > MPE Home > Th. List > Mathboxes > dford3lem1 | Structured version Visualization version Unicode version |
Description: Lemma for dford3 37595. (Contributed by Stefan O'Rear, 28-Oct-2014.) |
Ref | Expression |
---|---|
dford3lem1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | treq 4758 | . . . . 5 | |
2 | 1 | cbvralv 3171 | . . . 4 |
3 | 2 | biimpi 206 | . . 3 |
4 | 3 | adantl 482 | . 2 |
5 | trss 4761 | . . . . . 6 | |
6 | ssralv 3666 | . . . . . 6 | |
7 | 5, 6 | syl6 35 | . . . . 5 |
8 | 7 | com23 86 | . . . 4 |
9 | 8 | imp 445 | . . 3 |
10 | 9 | ralrimiv 2965 | . 2 |
11 | r19.26 3064 | . 2 | |
12 | 4, 10, 11 | sylanbrc 698 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wa 384 wcel 1990 wral 2912 wss 3574 wtr 4752 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 df-rex 2918 df-v 3202 df-in 3581 df-ss 3588 df-uni 4437 df-tr 4753 |
This theorem is referenced by: dford3lem2 37594 dford3 37595 |
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