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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 5117 | . 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 5109 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-sb 2097 df-clab 2742 df-cleq 2755 df-clel 2838 df-rab 3417 df-v 3457 df-dif 3908 df-un 3910 df-ss 3922 df-nul 4287 df-if 4488 df-sn 4590 df-pr 4592 df-op 4596 df-br 5110 |
| This theorem is used by: breqtrri 5138 3brtr3i 5140 supsrlem 11100 0lt1 11740 le9lt10 12747 9lt10 12852 hashunlei 14467 sqrt2gt1lt2 15330 trireciplem 15921 cos1bnd 16247 cos2bnd 16248 cos01gt0 16251 sin4lt0 16255 rpnnen2lem3 16276 z4even 16434 gcdaddmlem 16586 dec2dvds 17127 abvtrivd 20944 sincos4thpi 26687 log2cnv 27118 log2ublem2 27121 log2ublem3 27122 log2le1 27124 birthday 27128 harmonicbnd3 27181 lgam1 27237 basellem7 27260 ppiublem1 27375 ppiub 27377 bposlem4 27460 bposlem5 27461 bposlem9 27465 lgsdir2lem2 27499 lgsdir2lem3 27500 1reno 28699 ex-fl 30807 siilem1 31212 normlem5 31475 normlem6 31476 norm-ii-i 31498 norm3adifii 31509 cmm2i 31968 mayetes3i 32090 nmopcoadji 32462 mdoc2i 32787 dmdoc2i 32789 dp2lt10 33212 dp2ltsuc 33214 dplti 33233 sqsscirc1 34307 ballotlem1c 34907 hgt750lem 35047 problem5 36169 circum 36174 bj-pinftyccb 37893 bj-minftyccb 37897 poimirlem25 38324 cntotbnd 38475 3lexlogpow5ineq1 42849 3lexlogpow5ineq2 42850 aks4d1p1p2 42865 aks4d1p1p7 42869 posbezout 42895 aks6d1c7lem1 42975 jm2.23 43751 tr3dom 44282 halffl 46043 wallispi 46812 stirlinglem1 46816 fouriersw 46973 sinnpoly 47656 |
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