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| Mirrors > Home > MPE Home > Th. List > breqtri | Structured version Visualization version GIF version | ||
| Description: Substitution of equal classes into a binary relation. (Contributed by NM, 1-Aug-1999.) |
| Ref | Expression |
|---|---|
| breqtr.1 | ⊢ 𝐴𝑅𝐵 |
| breqtr.2 | ⊢ 𝐵 = 𝐶 |
| Ref | Expression |
|---|---|
| breqtri | ⊢ 𝐴𝑅𝐶 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | breqtr.1 | . 2 ⊢ 𝐴𝑅𝐵 | |
| 2 | breqtr.2 | . . 3 ⊢ 𝐵 = 𝐶 | |
| 3 | 2 | breq2i 5119 | . 2 ⊢ (𝐴𝑅𝐵 ↔ 𝐴𝑅𝐶) |
| 4 | 1, 3 | mpbi 233 | 1 ⊢ 𝐴𝑅𝐶 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 class class class wbr 5111 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-ext 2737 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2744 df-cleq 2757 df-clel 2840 df-rab 3419 df-v 3459 df-dif 3909 df-un 3911 df-ss 3923 df-nul 4287 df-if 4490 df-sn 4592 df-pr 4594 df-op 4598 df-br 5112 |
| This theorem is used by: breqtrri 5140 3brtr3i 5142 supsrlem 11115 0lt1 11755 le9lt10 12763 9lt10 12868 hashunlei 14484 sqrt2gt1lt2 15353 trireciplem 15943 cos1bnd 16269 cos2bnd 16270 cos01gt0 16273 sin4lt0 16277 rpnnen2lem3 16298 z4even 16456 gcdaddmlem 16608 dec2dvds 17149 abvtrivd 20989 sincos4thpi 26733 log2cnv 27164 log2ublem2 27167 log2ublem3 27168 log2le1 27170 birthday 27174 harmonicbnd3 27227 lgam1 27283 basellem7 27306 ppiublem1 27421 ppiub 27423 bposlem4 27506 bposlem5 27507 bposlem9 27511 lgsdir2lem2 27545 lgsdir2lem3 27546 1reno 28745 ex-fl 30873 siilem1 31278 normlem5 31541 normlem6 31542 norm-ii-i 31564 norm3adifii 31575 cmm2i 32034 mayetes3i 32156 nmopcoadji 32528 mdoc2i 32853 dmdoc2i 32855 dp2lt10 33277 dp2ltsuc 33279 dplti 33298 sqsscirc1 34366 ballotlem1c 34967 hgt750lem 35107 problem5 36202 circum 36207 bj-pinftyccb 37926 bj-minftyccb 37930 poimirlem25 38357 cntotbnd 38509 3lexlogpow5ineq1 42883 3lexlogpow5ineq2 42884 aks4d1p1p2 42899 aks4d1p1p7 42903 posbezout 42929 aks6d1c7lem1 43009 jm2.23 43800 tr3dom 44331 halffl 46092 wallispi 46861 stirlinglem1 46865 fouriersw 47022 sinnpoly 47705 |
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