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| Mirrors > Home > ILE Home > Th. List > breqtrri | GIF version | ||
| Description: Substitution of equal classes into a binary relation. (Contributed by NM, 5-Aug-1993.) |
| Ref | Expression |
|---|---|
| breqtrr.1 | ⊢ 𝐴𝑅𝐵 |
| breqtrr.2 | ⊢ 𝐶 = 𝐵 |
| Ref | Expression |
|---|---|
| breqtrri | ⊢ 𝐴𝑅𝐶 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | breqtrr.1 | . 2 ⊢ 𝐴𝑅𝐵 | |
| 2 | breqtrr.2 | . . 3 ⊢ 𝐶 = 𝐵 | |
| 3 | 2 | eqcomi 2233 | . 2 ⊢ 𝐵 = 𝐶 |
| 4 | 1, 3 | breqtri 4108 | 1 ⊢ 𝐴𝑅𝐶 |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1395 class class class wbr 4083 |
| 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-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-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-v 2801 df-un 3201 df-sn 3672 df-pr 3673 df-op 3675 df-br 4084 |
| This theorem is referenced by: 3brtr4i 4113 ensn1 6956 pw1dom2 7423 0lt1sr 7963 0le2 9211 2pos 9212 3pos 9215 4pos 9218 5pos 9221 6pos 9222 7pos 9223 8pos 9224 9pos 9225 1lt2 9291 2lt3 9292 3lt4 9294 4lt5 9297 5lt6 9301 6lt7 9306 7lt8 9312 8lt9 9319 nn0le2xi 9430 numltc 9614 declti 9626 sqge0i 10860 faclbnd2 10976 ege2le3 12198 cos2bnd 12287 3dvdsdec 12392 n2dvdsm1 12440 n2dvds3 12442 pockthi 12897 dec2dvds 12950 dveflem 15416 tangtx 15528 lgsdir2lem2 15724 ex-fl 16172 |
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