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| Mirrors > Home > ILE Home > Th. List > structcnvcnv | Unicode version | ||
| Description: Two ways to express the relational part of a structure. (Contributed by Mario Carneiro, 29-Aug-2015.) |
| Ref | Expression |
|---|---|
| structcnvcnv |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0nelxp 4692 |
. . . . . 6
| |
| 2 | cnvcnv 5123 |
. . . . . . . 8
| |
| 3 | inss2 3385 |
. . . . . . . 8
| |
| 4 | 2, 3 | eqsstri 3216 |
. . . . . . 7
|
| 5 | 4 | sseli 3180 |
. . . . . 6
|
| 6 | 1, 5 | mto 663 |
. . . . 5
|
| 7 | disjsn 3685 |
. . . . 5
| |
| 8 | 6, 7 | mpbir 146 |
. . . 4
|
| 9 | cnvcnvss 5125 |
. . . . 5
| |
| 10 | reldisj 3503 |
. . . . 5
| |
| 11 | 9, 10 | ax-mp 5 |
. . . 4
|
| 12 | 8, 11 | mpbi 145 |
. . 3
|
| 13 | 12 | a1i 9 |
. 2
|
| 14 | structn0fun 12716 |
. . . . 5
| |
| 15 | funrel 5276 |
. . . . 5
| |
| 16 | 14, 15 | syl 14 |
. . . 4
|
| 17 | dfrel2 5121 |
. . . 4
| |
| 18 | 16, 17 | sylib 122 |
. . 3
|
| 19 | difss 3290 |
. . . 4
| |
| 20 | cnvss 4840 |
. . . 4
| |
| 21 | cnvss 4840 |
. . . 4
| |
| 22 | 19, 20, 21 | mp2b 8 |
. . 3
|
| 23 | 18, 22 | eqsstrrdi 3237 |
. 2
|
| 24 | 13, 23 | eqssd 3201 |
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 615 ax-in2 616 ax-io 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-14 2170 ax-ext 2178 ax-sep 4152 ax-pow 4208 ax-pr 4243 |
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-fal 1370 df-nf 1475 df-sb 1777 df-eu 2048 df-mo 2049 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ne 2368 df-ral 2480 df-rex 2481 df-rab 2484 df-v 2765 df-dif 3159 df-un 3161 df-in 3163 df-ss 3170 df-nul 3452 df-pw 3608 df-sn 3629 df-pr 3630 df-op 3632 df-uni 3841 df-br 4035 df-opab 4096 df-xp 4670 df-rel 4671 df-cnv 4672 df-co 4673 df-dm 4674 df-iota 5220 df-fun 5261 df-fv 5267 df-struct 12705 |
| This theorem is referenced by: structfung 12720 |
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