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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 5111 | . 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 5103 |
| 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 2147 ax-9 2155 ax-ext 2733 |
| 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 2740 df-cleq 2753 df-clel 2836 df-rab 3414 df-v 3453 df-dif 3902 df-un 3904 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-br 5104 |
| This theorem is used by: breqtrri 5132 3brtr3i 5134 supsrlem 11196 0lt1 11838 le9lt10 12846 9lt10 12951 hashunlei 14570 sqrt2gt1lt2 15441 trireciplem 16031 cos1bnd 16355 cos2bnd 16356 cos01gt0 16359 sin4lt0 16363 rpnnen2lem3 16384 z4even 16542 gcdaddmlem 16696 dec2dvds 17241 abvtrivd 21089 sincos4thpi 26842 log2cnv 27272 log2ublem2 27275 log2ublem3 27276 log2le1 27278 birthday 27282 harmonicbnd3 27335 lgam1 27391 basellem7 27414 ppiublem1 27529 ppiub 27531 bposlem4 27614 bposlem5 27615 bposlem9 27619 lgsdir2lem2 27653 lgsdir2lem3 27654 1reno 28883 ex-fl 31048 siilem1 31453 normlem5 31716 normlem6 31717 norm-ii-i 31739 norm3adifii 31750 cmm2i 32209 mayetes3i 32331 nmopcoadji 32703 mdoc2i 33028 dmdoc2i 33030 dp2lt10 33450 dp2ltsuc 33452 dplti 33471 sqsscirc1 34540 ballotlem1c 35140 hgt750lem 35280 problem5 36434 circum 36439 bj-pinftyccb 38142 bj-minftyccb 38146 poimirlem25 38563 cntotbnd 38730 3lexlogpow5ineq1 43104 3lexlogpow5ineq2 43105 aks4d1p1p2 43120 aks4d1p1p7 43124 posbezout 43150 aks6d1c7lem1 43230 jm2.23 44002 tr3dom 44528 halffl 46311 wallispi 47079 stirlinglem1 47083 fouriersw 47240 goldratval 47935 |
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