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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 2808 | . 2 ⊢ (𝜑 → 𝐴 = 𝐷) |
| 5 | 1, 4 | eqtr3d 2798 | 1 ⊢ (𝜑 → 𝐶 = 𝐷) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1559 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-9 2151 ax-ext 2733 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-ex 1799 df-cleq 2753 |
| This theorem is referenced by: uneqin 4239 coi2 6246 foima 6778 f1imacnv 6818 fvsnun1 7161 fnsnsplit 7163 phplem2 9167 php3 9171 rankopb 9804 fin4en1 10260 fpwwe2 10595 winacard 10644 mul02lem1 11353 cnegex2 11359 crreczi 14235 hashinf 14342 hashcard 14362 cshw0 14801 cshwn 14804 sqrtneglem 15284 rlimresb 15583 bpoly3 16079 bpoly4 16080 sinhval 16177 coshval 16178 absefib 16221 efieq1re 16222 sadcaddlem 16482 sadaddlem 16491 qus0subgbas 19230 psgnsn 19551 odngen 19608 frlmup3 21840 mat0op 22467 restopnb 23223 cnmpt2t 23721 clmnegneg 25154 ncvspi 25206 volsup2 25655 plypf1 26260 pige3ALT 26573 sineq0 26577 eflog 26629 logef 26634 cxpsqrt 26756 dvcncxp1 26796 cubic2 26901 quart1 26909 asinsinlem 26944 asinsin 26945 2efiatan 26971 pclogsum 27267 lgsneg 27373 bdayfinbndlem1 28548 vc0 30734 vcm 30736 nvpi 30827 honegneg 31966 opsqrlem6 32305 sto1i 32396 mdexchi 32495 fmptunsnop 32863 preiman0 32873 elrspunidl 33575 cnre2csqlem 34168 itgexpif 34861 subfacp1lem1 35490 rankaltopb 36290 poimirlem23 38103 dvtan 38130 dvasin 38164 heiborlem6 38276 trlcoat 41308 cdlemk54 41543 readvcot 42934 resubid 42979 sn-mul02 43035 iocunico 43749 relintab 44120 rfovcnvf1od 44541 ntrneifv3 44619 ntrneifv4 44622 clsneifv3 44647 clsneifv4 44648 neicvgfv 44658 snunioo1 46049 dvsinexp 46446 dvnprodlem1 46481 itgsubsticclem 46510 stirlinglem1 46609 fourierdlem80 46721 fourierdlem111 46752 sqwvfoura 46763 sqwvfourb 46764 fouriersw 46766 saliinclf 46861 smfco 47337 2oppf 49714 aacllem 50383 |
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