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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 2242 | . 2 ⊢ 𝐵 = 𝐶 |
| 4 | 1, 3 | breqtri 4150 | 1 ⊢ 𝐴𝑅𝐶 |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1402 class class class wbr 4125 |
| 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 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-ext 2220 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-v 2823 df-un 3224 df-sn 3711 df-pr 3712 df-op 3714 df-br 4126 |
| This theorem is referenced by: 3brtr4i 4155 ensn1 7073 pw1dom2 7576 0lt1sr 8122 0le2 9373 2pos 9374 3pos 9377 4pos 9380 5pos 9383 6pos 9384 7pos 9385 8pos 9386 9pos 9387 1lt2 9453 2lt3 9454 3lt4 9456 4lt5 9459 5lt6 9463 6lt7 9468 7lt8 9474 8lt9 9481 nn0le2xi 9592 numltc 9781 declti 9793 sqge0i 11041 faclbnd2 11158 ege2le3 12416 cos2bnd 12505 3dvdsdec 12610 n2dvdsm1 12658 n2dvds3 12660 pockthi 13115 dec2dvds 13168 dveflem 15750 tangtx 15862 lgsdir2lem2 16062 ex-fl 16653 |
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