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| Mirrors > Home > ILE Home > Th. List > cnvdif | Unicode version | ||
| Description: Distributive law for converse over set difference. (Contributed by Mario Carneiro, 26-Jun-2014.) |
| Ref | Expression |
|---|---|
| cnvdif |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | relcnv 5112 |
. 2
| |
| 2 | difss 3331 |
. . 3
| |
| 3 | relcnv 5112 |
. . 3
| |
| 4 | relss 4811 |
. . 3
| |
| 5 | 2, 3, 4 | mp2 16 |
. 2
|
| 6 | eldif 3207 |
. . 3
| |
| 7 | vex 2803 |
. . . 4
| |
| 8 | vex 2803 |
. . . 4
| |
| 9 | 7, 8 | opelcnv 4910 |
. . 3
|
| 10 | eldif 3207 |
. . . 4
| |
| 11 | 7, 8 | opelcnv 4910 |
. . . . 5
|
| 12 | 7, 8 | opelcnv 4910 |
. . . . . 6
|
| 13 | 12 | notbii 672 |
. . . . 5
|
| 14 | 11, 13 | anbi12i 460 |
. . . 4
|
| 15 | 10, 14 | bitri 184 |
. . 3
|
| 16 | 6, 9, 15 | 3bitr4i 212 |
. 2
|
| 17 | 1, 5, 16 | eqrelriiv 4818 |
1
|
| 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-in1 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-14 2203 ax-ext 2211 ax-sep 4205 ax-pow 4262 ax-pr 4297 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-v 2802 df-dif 3200 df-un 3202 df-in 3204 df-ss 3211 df-pw 3652 df-sn 3673 df-pr 3674 df-op 3676 df-br 4087 df-opab 4149 df-xp 4729 df-rel 4730 df-cnv 4731 |
| This theorem is referenced by: (None) |
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