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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 2780 | . 2 ⊢ (𝜑 → 𝐴 = 𝐷) |
| 5 | 1, 4 | eqtr3d 2770 | 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 2705 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1781 df-cleq 2725 |
| This theorem is referenced by: uneqin 4238 coi2 6219 foima 6748 f1imacnv 6787 fvsnun1 7125 fnsnsplit 7127 phplem2 9125 php3 9129 rankopb 9756 fin4en1 10211 fpwwe2 10545 winacard 10594 mul02lem1 11300 cnegex2 11306 crreczi 14142 hashinf 14249 hashcard 14269 cshw0 14708 cshwn 14711 sqrtneglem 15180 rlimresb 15479 bpoly3 15972 bpoly4 15973 sinhval 16070 coshval 16071 absefib 16114 efieq1re 16115 sadcaddlem 16375 sadaddlem 16384 qus0subgbas 19118 psgnsn 19440 odngen 19497 frlmup3 21746 mat0op 22354 restopnb 23110 cnmpt2t 23608 clmnegneg 25051 ncvspi 25103 volsup2 25553 plypf1 26164 pige3ALT 26476 sineq0 26480 eflog 26532 logef 26537 cxpsqrt 26659 dvcncxp1 26699 cubic2 26805 quart1 26813 asinsinlem 26848 asinsin 26849 2efiatan 26875 pclogsum 27173 lgsneg 27279 vc0 30575 vcm 30577 nvpi 30668 honegneg 31807 opsqrlem6 32146 sto1i 32237 mdexchi 32336 fmptunsnop 32705 preiman0 32715 elrspunidl 33437 cnre2csqlem 33995 itgexpif 34691 subfacp1lem1 35295 rankaltopb 36095 poimirlem23 37756 dvtan 37783 dvasin 37817 heiborlem6 37929 trlcoat 40895 cdlemk54 41130 readvcot 42534 resubid 42579 sn-mul02 42622 iocunico 43368 relintab 43740 rfovcnvf1od 44161 ntrneifv3 44239 ntrneifv4 44242 clsneifv3 44267 clsneifv4 44268 neicvgfv 44278 snunioo1 45674 dvsinexp 46071 dvnprodlem1 46106 itgsubsticclem 46135 stirlinglem1 46234 fourierdlem80 46346 fourierdlem111 46377 sqwvfoura 46388 sqwvfourb 46389 fouriersw 46391 saliinclf 46486 smfco 46962 2oppf 49293 aacllem 49962 |
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