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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 2783 | . 2 ⊢ (𝜑 → 𝐴 = 𝐷) |
| 5 | 1, 4 | eqtr3d 2773 | 1 ⊢ (𝜑 → 𝐶 = 𝐷) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1541 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-9 2123 ax-ext 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1781 df-cleq 2728 |
| This theorem is referenced by: uneqin 4241 coi2 6222 foima 6751 f1imacnv 6790 fvsnun1 7128 fnsnsplit 7130 phplem2 9129 php3 9133 rankopb 9764 fin4en1 10219 fpwwe2 10554 winacard 10603 mul02lem1 11309 cnegex2 11315 crreczi 14151 hashinf 14258 hashcard 14278 cshw0 14717 cshwn 14720 sqrtneglem 15189 rlimresb 15488 bpoly3 15981 bpoly4 15982 sinhval 16079 coshval 16080 absefib 16123 efieq1re 16124 sadcaddlem 16384 sadaddlem 16393 qus0subgbas 19127 psgnsn 19449 odngen 19506 frlmup3 21755 mat0op 22363 restopnb 23119 cnmpt2t 23617 clmnegneg 25060 ncvspi 25112 volsup2 25562 plypf1 26173 pige3ALT 26485 sineq0 26489 eflog 26541 logef 26546 cxpsqrt 26668 dvcncxp1 26708 cubic2 26814 quart1 26822 asinsinlem 26857 asinsin 26858 2efiatan 26884 pclogsum 27182 lgsneg 27288 bdayfinbndlem1 28463 vc0 30649 vcm 30651 nvpi 30742 honegneg 31881 opsqrlem6 32220 sto1i 32311 mdexchi 32410 fmptunsnop 32779 preiman0 32789 elrspunidl 33509 cnre2csqlem 34067 itgexpif 34763 subfacp1lem1 35373 rankaltopb 36173 poimirlem23 37844 dvtan 37871 dvasin 37905 heiborlem6 38017 trlcoat 40983 cdlemk54 41218 readvcot 42619 resubid 42664 sn-mul02 42707 iocunico 43453 relintab 43824 rfovcnvf1od 44245 ntrneifv3 44323 ntrneifv4 44326 clsneifv3 44351 clsneifv4 44352 neicvgfv 44362 snunioo1 45758 dvsinexp 46155 dvnprodlem1 46190 itgsubsticclem 46219 stirlinglem1 46318 fourierdlem80 46430 fourierdlem111 46461 sqwvfoura 46472 sqwvfourb 46473 fouriersw 46475 saliinclf 46570 smfco 47046 2oppf 49377 aacllem 50046 |
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