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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 4136 | 1 ⊢ 𝐴𝑅𝐶 |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1398 class class class wbr 4111 |
| 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 3217 df-sn 3697 df-pr 3698 df-op 3700 df-br 4112 |
| This theorem is referenced by: 3brtr4i 4141 ensn1 7038 pw1dom2 7539 0lt1sr 8082 0le2 9329 2pos 9330 3pos 9333 4pos 9336 5pos 9339 6pos 9340 7pos 9341 8pos 9342 9pos 9343 1lt2 9409 2lt3 9410 3lt4 9412 4lt5 9415 5lt6 9419 6lt7 9424 7lt8 9430 8lt9 9437 nn0le2xi 9548 numltc 9737 declti 9749 sqge0i 10992 faclbnd2 11108 ege2le3 12361 cos2bnd 12450 3dvdsdec 12555 n2dvdsm1 12603 n2dvds3 12605 pockthi 13060 dec2dvds 13113 dveflem 15608 tangtx 15720 lgsdir2lem2 15919 ex-fl 16510 |
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