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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 4111 | 1 ⊢ 𝐴𝑅𝐶 |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1395 class class class wbr 4086 |
| 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 2802 df-un 3202 df-sn 3673 df-pr 3674 df-op 3676 df-br 4087 |
| This theorem is referenced by: 3brtr4i 4116 ensn1 6965 pw1dom2 7435 0lt1sr 7975 0le2 9223 2pos 9224 3pos 9227 4pos 9230 5pos 9233 6pos 9234 7pos 9235 8pos 9236 9pos 9237 1lt2 9303 2lt3 9304 3lt4 9306 4lt5 9309 5lt6 9313 6lt7 9318 7lt8 9324 8lt9 9331 nn0le2xi 9442 numltc 9626 declti 9638 sqge0i 10878 faclbnd2 10994 ege2le3 12222 cos2bnd 12311 3dvdsdec 12416 n2dvdsm1 12464 n2dvds3 12466 pockthi 12921 dec2dvds 12974 dveflem 15440 tangtx 15552 lgsdir2lem2 15748 ex-fl 16257 |
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