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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 2784 | . 2 ⊢ (𝜑 → 𝐴 = 𝐷) |
| 5 | 1, 4 | eqtr3d 2774 | 1 ⊢ (𝜑 → 𝐶 = 𝐷) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-9 2124 ax-ext 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1782 df-cleq 2729 |
| This theorem is referenced by: uneqin 4230 coi2 6222 foima 6751 f1imacnv 6790 fvsnun1 7130 fnsnsplit 7132 phplem2 9132 php3 9136 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 21790 mat0op 22394 restopnb 23150 cnmpt2t 23648 clmnegneg 25081 ncvspi 25133 volsup2 25582 plypf1 26187 pige3ALT 26497 sineq0 26501 eflog 26553 logef 26558 cxpsqrt 26680 dvcncxp1 26720 cubic2 26825 quart1 26833 asinsinlem 26868 asinsin 26869 2efiatan 26895 pclogsum 27192 lgsneg 27298 bdayfinbndlem1 28473 vc0 30660 vcm 30662 nvpi 30753 honegneg 31892 opsqrlem6 32231 sto1i 32322 mdexchi 32421 fmptunsnop 32788 preiman0 32798 elrspunidl 33503 cnre2csqlem 34070 itgexpif 34766 subfacp1lem1 35377 rankaltopb 36177 poimirlem23 37978 dvtan 38005 dvasin 38039 heiborlem6 38151 trlcoat 41183 cdlemk54 41418 readvcot 42810 resubid 42855 sn-mul02 42911 iocunico 43657 relintab 44028 rfovcnvf1od 44449 ntrneifv3 44527 ntrneifv4 44530 clsneifv3 44555 clsneifv4 44556 neicvgfv 44566 snunioo1 45960 dvsinexp 46357 dvnprodlem1 46392 itgsubsticclem 46421 stirlinglem1 46520 fourierdlem80 46632 fourierdlem111 46663 sqwvfoura 46674 sqwvfourb 46675 fouriersw 46677 saliinclf 46772 smfco 47248 2oppf 49619 aacllem 50288 |
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