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| Mirrors > Home > ILE Home > Th. List > eqbrtri | Unicode version | ||
| Description: Substitution of equal classes into a binary relation. (Contributed by NM, 5-Aug-1993.) |
| Ref | Expression |
|---|---|
| eqbrtr.1 |
|
| eqbrtr.2 |
|
| Ref | Expression |
|---|---|
| eqbrtri |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqbrtr.2 |
. 2
| |
| 2 | eqbrtr.1 |
. . 3
| |
| 3 | 2 | breq1i 4138 |
. 2
|
| 4 | 1, 3 | mpbir 146 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on 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 proof 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 3715 df-pr 3716 df-op 3718 df-br 4132 |
| This theorem is used by: eqbrtrri 4154 3brtr4i 4161 exmidpw2en 7225 exmidonfinlem 7551 neg1lt0 9421 halflt1 9533 3halfnz 9753 declei 9827 numlti 9828 faclbnd3 11202 geo2lim 12307 0.999... 12312 geoihalfsum 12313 fprodap0 12412 fprodap0f 12427 tan0 12522 cos2bnd 12551 sin4lt0 12558 eirraplem 12568 1nprm 12916 ballotfilemth 13338 znnen 13346 cnfldstr 15003 tan4thpi 16085 log2tlbndlog2 16237 ppiqltx 16298 bposlem8 16335 zabsle1 16340 ex-fl 16961 trilpolemisumle 17311 |
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