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Related theorems Unicode version |
| Description: Two ways of saying a relation is transitive. Definition of transitivity in [Schechter] p. 51. |
| Ref | Expression |
|---|---|
| cotrOLD |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssel 2615 |
. . . . . . . 8
| |
| 2 | df-br 3339 |
. . . . . . . 8
| |
| 3 | 1, 2 | syl6ibr 230 |
. . . . . . 7
|
| 4 | opabid 3557 |
. . . . . . 7
| |
| 5 | 3, 4 | syl5ibr 224 |
. . . . . 6
|
| 6 | df-co 4003 |
. . . . . . 7
| |
| 7 | 6 | sseq1i 2641 |
. . . . . 6
|
| 8 | 19.23v 1672 |
. . . . . 6
| |
| 9 | 5, 7, 8 | 3imtr4i 236 |
. . . . 5
|
| 10 | 9 | 19.21aiv 1664 |
. . . 4
|
| 11 | alcom 1379 |
. . . 4
| |
| 12 | 10, 11 | sylibr 217 |
. . 3
|
| 13 | 12 | 19.21aiv 1664 |
. 2
|
| 14 | ssopab2 3573 |
. . . . 5
| |
| 15 | 8 | albii 1346 |
. . . . . . 7
|
| 16 | 11, 15 | bitri 190 |
. . . . . 6
|
| 17 | 16 | albii 1346 |
. . . . 5
|
| 18 | 14, 17 | bitr4i 193 |
. . . 4
|
| 19 | opabss 3397 |
. . . . 5
| |
| 20 | sstr2 2623 |
. . . . 5
| |
| 21 | 19, 20 | mpi 55 |
. . . 4
|
| 22 | 18, 21 | sylbir 218 |
. . 3
|
| 23 | 22, 6 | syl5ss 2661 |
. 2
|
| 24 | 13, 23 | impbii 174 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1304 ax-gen 1305 ax-8 1306 ax-9 1307 ax-10 1308 ax-11 1309 ax-12 1310 ax-14 1312 ax-17 1317 ax-4 1319 ax-5o 1321 ax-6o 1324 ax-9o 1481 ax-10o 1500 ax-16 1580 ax-11o 1588 ax-ext 1865 ax-sep 3438 ax-nul 3445 ax-pow 3481 ax-pr 3524 |
| This theorem depends on definitions: df-bi 164 df-or 241 df-an 242 df-ex 1327 df-sb 1536 df-eu 1775 df-mo 1776 df-clab 1872 df-cleq 1877 df-clel 1880 df-ne 2019 df-v 2294 df-dif 2597 df-un 2600 df-in 2603 df-ss 2605 df-nul 2876 df-pw 3035 df-sn 3049 df-pr 3050 df-op 3053 df-br 3339 df-opab 3396 df-co 4003 |