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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 2235 | . 2 ⊢ 𝐵 = 𝐶 |
| 4 | 1, 3 | breqtri 4113 | 1 ⊢ 𝐴𝑅𝐶 |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1397 class class class wbr 4088 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-v 2804 df-un 3204 df-sn 3675 df-pr 3676 df-op 3678 df-br 4089 |
| This theorem is referenced by: 3brtr4i 4118 ensn1 6970 pw1dom2 7445 0lt1sr 7985 0le2 9233 2pos 9234 3pos 9237 4pos 9240 5pos 9243 6pos 9244 7pos 9245 8pos 9246 9pos 9247 1lt2 9313 2lt3 9314 3lt4 9316 4lt5 9319 5lt6 9323 6lt7 9328 7lt8 9334 8lt9 9341 nn0le2xi 9452 numltc 9636 declti 9648 sqge0i 10889 faclbnd2 11005 ege2le3 12250 cos2bnd 12339 3dvdsdec 12444 n2dvdsm1 12492 n2dvds3 12494 pockthi 12949 dec2dvds 13002 dveflem 15469 tangtx 15581 lgsdir2lem2 15777 ex-fl 16368 |
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