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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 2786 | . 2 ⊢ (𝜑 → 𝐴 = 𝐷) |
| 5 | 1, 4 | eqtr3d 2776 | 1 ⊢ (𝜑 → 𝐶 = 𝐷) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1547 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-9 2129 ax-ext 2711 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-ex 1787 df-cleq 2731 |
| This theorem is referenced by: uneqin 4217 coi2 6215 foima 6744 f1imacnv 6783 fvsnun1 7126 fnsnsplit 7128 phplem2 9129 php3 9133 rankopb 9767 fin4en1 10222 fpwwe2 10557 winacard 10606 mul02lem1 11313 cnegex2 11319 crreczi 14181 hashinf 14288 hashcard 14308 cshw0 14747 cshwn 14750 sqrtneglem 15219 rlimresb 15518 bpoly3 16014 bpoly4 16015 sinhval 16112 coshval 16113 absefib 16156 efieq1re 16157 sadcaddlem 16417 sadaddlem 16426 qus0subgbas 19164 psgnsn 19486 odngen 19543 frlmup3 21775 mat0op 22402 restopnb 23158 cnmpt2t 23656 clmnegneg 25089 ncvspi 25141 volsup2 25590 plypf1 26195 pige3ALT 26502 sineq0 26506 eflog 26558 logef 26563 cxpsqrt 26685 dvcncxp1 26725 cubic2 26830 quart1 26838 asinsinlem 26873 asinsin 26874 2efiatan 26900 pclogsum 27196 lgsneg 27302 bdayfinbndlem1 28477 vc0 30663 vcm 30665 nvpi 30756 honegneg 31895 opsqrlem6 32234 sto1i 32325 mdexchi 32424 fmptunsnop 32792 preiman0 32802 elrspunidl 33511 cnre2csqlem 34094 itgexpif 34790 subfacp1lem1 35407 rankaltopb 36207 poimirlem23 38010 dvtan 38037 dvasin 38071 heiborlem6 38183 trlcoat 41215 cdlemk54 41450 readvcot 42841 resubid 42886 sn-mul02 42942 iocunico 43656 relintab 44027 rfovcnvf1od 44448 ntrneifv3 44526 ntrneifv4 44529 clsneifv3 44554 clsneifv4 44555 neicvgfv 44565 snunioo1 45957 dvsinexp 46354 dvnprodlem1 46389 itgsubsticclem 46418 stirlinglem1 46517 fourierdlem80 46629 fourierdlem111 46660 sqwvfoura 46671 sqwvfourb 46672 fouriersw 46674 saliinclf 46769 smfco 47245 2oppf 49622 aacllem 50291 |
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