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| Mirrors > Home > MPE Home > Th. List > 3eqtr3a | Structured version Visualization version GIF version | ||
| Description: A chained equality inference, useful for converting from definitions. (Contributed by Mario Carneiro, 6-Nov-2015.) |
| Ref | Expression |
|---|---|
| 3eqtr3a.1 | ⊢ 𝐴 = 𝐵 |
| 3eqtr3a.2 | ⊢ (𝜑 → 𝐴 = 𝐶) |
| 3eqtr3a.3 | ⊢ (𝜑 → 𝐵 = 𝐷) |
| Ref | Expression |
|---|---|
| 3eqtr3a | ⊢ (𝜑 → 𝐶 = 𝐷) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 3eqtr3a.2 | . 2 ⊢ (𝜑 → 𝐴 = 𝐶) | |
| 2 | 3eqtr3a.1 | . . 3 ⊢ 𝐴 = 𝐵 | |
| 3 | 3eqtr3a.3 | . . 3 ⊢ (𝜑 → 𝐵 = 𝐷) | |
| 4 | 2, 3 | eqtrid 2784 | . 2 ⊢ (𝜑 → 𝐴 = 𝐷) |
| 5 | 1, 4 | eqtr3d 2774 | 1 ⊢ (𝜑 → 𝐶 = 𝐷) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-9 2124 ax-ext 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1782 df-cleq 2729 |
| This theorem is referenced by: uneqin 4243 coi2 6230 foima 6759 f1imacnv 6798 fvsnun1 7138 fnsnsplit 7140 phplem2 9141 php3 9145 rankopb 9776 fin4en1 10231 fpwwe2 10566 winacard 10615 mul02lem1 11321 cnegex2 11327 crreczi 14163 hashinf 14270 hashcard 14290 cshw0 14729 cshwn 14732 sqrtneglem 15201 rlimresb 15500 bpoly3 15993 bpoly4 15994 sinhval 16091 coshval 16092 absefib 16135 efieq1re 16136 sadcaddlem 16396 sadaddlem 16405 qus0subgbas 19139 psgnsn 19461 odngen 19518 frlmup3 21767 mat0op 22375 restopnb 23131 cnmpt2t 23629 clmnegneg 25072 ncvspi 25124 volsup2 25574 plypf1 26185 pige3ALT 26497 sineq0 26501 eflog 26553 logef 26558 cxpsqrt 26680 dvcncxp1 26720 cubic2 26826 quart1 26834 asinsinlem 26869 asinsin 26870 2efiatan 26896 pclogsum 27194 lgsneg 27300 bdayfinbndlem1 28475 vc0 30662 vcm 30664 nvpi 30755 honegneg 31894 opsqrlem6 32233 sto1i 32324 mdexchi 32423 fmptunsnop 32790 preiman0 32800 elrspunidl 33521 cnre2csqlem 34088 itgexpif 34784 subfacp1lem1 35395 rankaltopb 36195 poimirlem23 37894 dvtan 37921 dvasin 37955 heiborlem6 38067 trlcoat 41099 cdlemk54 41334 readvcot 42734 resubid 42779 sn-mul02 42822 iocunico 43568 relintab 43939 rfovcnvf1od 44360 ntrneifv3 44438 ntrneifv4 44441 clsneifv3 44466 clsneifv4 44467 neicvgfv 44477 snunioo1 45872 dvsinexp 46269 dvnprodlem1 46304 itgsubsticclem 46333 stirlinglem1 46432 fourierdlem80 46544 fourierdlem111 46575 sqwvfoura 46586 sqwvfourb 46587 fouriersw 46589 saliinclf 46684 smfco 47160 2oppf 49491 aacllem 50160 |
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