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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 2238 | . 2 ⊢ 𝐵 = 𝐶 |
| 4 | 1, 3 | breqtri 4139 | 1 ⊢ 𝐴𝑅𝐶 |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1398 class class class wbr 4114 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2216 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-v 2817 df-un 3218 df-sn 3700 df-pr 3701 df-op 3703 df-br 4115 |
| This theorem is referenced by: 3brtr4i 4144 ensn1 7049 pw1dom2 7550 0lt1sr 8096 0le2 9344 2pos 9345 3pos 9348 4pos 9351 5pos 9354 6pos 9355 7pos 9356 8pos 9357 9pos 9358 1lt2 9424 2lt3 9425 3lt4 9427 4lt5 9430 5lt6 9434 6lt7 9439 7lt8 9445 8lt9 9452 nn0le2xi 9563 numltc 9752 declti 9764 sqge0i 11012 faclbnd2 11129 ege2le3 12382 cos2bnd 12471 3dvdsdec 12576 n2dvdsm1 12624 n2dvds3 12626 pockthi 13081 dec2dvds 13134 dveflem 15717 tangtx 15829 lgsdir2lem2 16028 ex-fl 16619 |
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