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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 2807 | . 2 ⊢ (𝜑 → 𝐴 = 𝐷) |
| 5 | 1, 4 | eqtr3d 2797 | 1 ⊢ (𝜑 → 𝐶 = 𝐷) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 |
| 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 1942 ax-6 1999 ax-7 2040 ax-9 2154 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1812 df-cleq 2752 |
| This theorem is used by: uneqin 4233 coi2 6267 foima 6804 f1imacnv 6844 fvsnun1 7189 fnsnsplit 7191 phplem2 9225 php3 9229 rankopb 9871 fin4en1 10392 fpwwe2 10733 winacard 10782 mul02lem1 11491 cnegex2 11497 crreczi 14377 hashinf 14484 hashcard 14504 cshw0 14951 cshwn 14954 sqrtneglem 15440 rlimresb 15739 bpoly3 16231 bpoly4 16232 sinhval 16329 coshval 16330 absefib 16373 efieq1re 16374 sadcaddlem 16634 sadaddlem 16643 qus0subgbas 19420 psgnsn 19741 odngen 19798 frlmup3 22113 mat0op 22741 restopnb 23500 cnmpt2t 23999 clmnegneg 25432 ncvspi 25484 volsup2 25933 plypf1 26538 pige3ALT 26855 sineq0 26859 eflog 26911 logef 26916 cxpsqrt 27038 dvcncxp1 27078 cubic2 27183 quart1 27191 asinsinlem 27226 asinsin 27227 2efiatan 27253 pclogsum 27549 lgsneg 27655 bdayfinbndlem1 28860 vc0 31183 vcm 31185 nvpi 31276 honegneg 32415 opsqrlem6 32754 sto1i 32845 mdexchi 32944 fmptunsnop 33342 preiman0 33352 elrspunidl 34026 cnre2csqlem 34590 itgexpif 35283 subfacp1lem1 36032 rankaltopb 36838 poimirlem23 38668 dvtan 38695 dvasin 38729 heiborlem6 38857 trlcoat 41887 cdlemk54 42122 readvcot 43522 resubid 43567 sn-mul02 43623 iocunico 44320 relintab 44691 rfovcnvf1od 45111 ntrneifv3 45189 ntrneifv4 45192 clsneifv3 45217 clsneifv4 45218 neicvgfv 45228 snunioo1 46631 dvsinexp 47028 dvnprodlem1 47063 itgsubsticclem 47092 stirlinglem1 47191 fourierdlem80 47303 fourierdlem111 47334 sqwvfoura 47345 sqwvfourb 47346 fouriersw 47348 saliinclf 47443 smfco 47919 2oppf 50355 aacllem 51121 |
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