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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 5114 | . 2 ⊢ (𝐴𝑅𝐵 ↔ 𝐴𝑅𝐶) |
| 4 | 1, 3 | mpbi 233 | 1 ⊢ 𝐴𝑅𝐶 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1569 class class class wbr 5106 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2101 df-clab 2742 df-cleq 2755 df-clel 2839 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4839 df-br 5107 |
| This theorem is used by: breqtrri 5135 3brtr3i 5137 supsrlem 11209 0lt1 11851 le9lt10 12859 9lt10 12964 hashunlei 14583 sqrt2gt1lt2 15456 trireciplem 16046 cos1bnd 16370 cos2bnd 16371 cos01gt0 16374 sin4lt0 16378 rpnnen2lem3 16399 z4even 16557 gcdaddmlem 16711 dec2dvds 17256 abvtrivd 21104 sincos4thpi 26857 log2cnv 27287 log2ublem2 27290 log2ublem3 27291 log2le1 27293 birthday 27297 harmonicbnd3 27350 lgam1 27406 basellem7 27429 ppiublem1 27544 ppiub 27546 bposlem4 27629 bposlem5 27630 bposlem9 27634 lgsdir2lem2 27668 lgsdir2lem3 27669 1reno 28898 ex-fl 31063 siilem1 31468 normlem5 31731 normlem6 31732 norm-ii-i 31754 norm3adifii 31765 cmm2i 32224 mayetes3i 32346 nmopcoadji 32718 mdoc2i 33043 dmdoc2i 33045 dp2lt10 33506 dp2ltsuc 33508 dplti 33527 sqsscirc1 34596 ballotlem1c 35196 hgt750lem 35336 problem5 36558 circum 36563 bj-pinftyccb 38288 bj-minftyccb 38292 poimirlem25 38709 cntotbnd 38876 3lexlogpow5ineq1 43250 3lexlogpow5ineq2 43251 aks4d1p1p2 43266 aks4d1p1p7 43270 posbezout 43296 aks6d1c7lem1 43376 jm2.23 44149 tr3dom 44675 halffl 46457 wallispi 47225 stirlinglem1 47229 fouriersw 47386 goldratval 48081 |
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