| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 4802 |
. . . . . 6
| |
| 2 | cnvcnv 5240 |
. . . . . . . 8
| |
| 3 | inss2 3452 |
. . . . . . . 8
| |
| 4 | 2, 3 | eqsstri 3280 |
. . . . . . 7
|
| 5 | 4 | sseli 3244 |
. . . . . 6
|
| 6 | 1, 5 | mto 672 |
. . . . 5
|
| 7 | disjsn 3771 |
. . . . 5
| |
| 8 | 6, 7 | mpbir 146 |
. . . 4
|
| 9 | cnvcnvss 5242 |
. . . . 5
| |
| 10 | reldisj 3576 |
. . . . 5
| |
| 11 | 9, 10 | ax-mp 5 |
. . . 4
|
| 12 | 8, 11 | mpbi 145 |
. . 3
|
| 13 | 12 | a1i 9 |
. 2
|
| 14 | structn0fun 13365 |
. . . . 5
| |
| 15 | funrel 5394 |
. . . . 5
| |
| 16 | 14, 15 | syl 14 |
. . . 4
|
| 17 | dfrel2 5238 |
. . . 4
| |
| 18 | 16, 17 | sylib 122 |
. . 3
|
| 19 | difss 3355 |
. . . 4
| |
| 20 | cnvss 4953 |
. . . 4
| |
| 21 | cnvss 4953 |
. . . 4
| |
| 22 | 19, 20, 21 | mp2b 8 |
. . 3
|
| 23 | 18, 22 | eqsstrrdi 3301 |
. 2
|
| 24 | 13, 23 | eqssd 3265 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4249 ax-pow 4311 ax-pr 4346 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4131 df-opab 4193 df-xp 4780 df-rel 4781 df-cnv 4782 df-co 4783 df-dm 4784 df-iota 5337 df-fun 5379 df-fv 5385 df-struct 13354 |
| This theorem is used by: structfung 13369 |
| Copyright terms: Public domain | W3C validator |