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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 2816 | . 2 ⊢ (𝜑 → 𝐴 = 𝐷) |
| 5 | 1, 4 | eqtr3d 2806 | 1 ⊢ (𝜑 → 𝐶 = 𝐷) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1567 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-9 2159 ax-ext 2741 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-ex 1807 df-cleq 2761 |
| This theorem is referenced by: uneqin 4250 coi2 6263 foima 6795 f1imacnv 6835 fvsnun1 7178 fnsnsplit 7180 phplem2 9185 php3 9189 rankopb 9820 fin4en1 10289 fpwwe2 10624 winacard 10673 mul02lem1 11382 cnegex2 11388 crreczi 14260 hashinf 14367 hashcard 14387 cshw0 14827 cshwn 14830 sqrtneglem 15313 rlimresb 15612 bpoly3 16108 bpoly4 16109 sinhval 16206 coshval 16207 absefib 16250 efieq1re 16251 sadcaddlem 16511 sadaddlem 16520 qus0subgbas 19265 psgnsn 19586 odngen 19643 frlmup3 21915 mat0op 22541 restopnb 23297 cnmpt2t 23795 clmnegneg 25228 ncvspi 25280 volsup2 25729 plypf1 26334 pige3ALT 26647 sineq0 26651 eflog 26703 logef 26708 cxpsqrt 26830 dvcncxp1 26870 cubic2 26975 quart1 26983 asinsinlem 27018 asinsin 27019 2efiatan 27045 pclogsum 27341 lgsneg 27447 bdayfinbndlem1 28622 vc0 30863 vcm 30865 nvpi 30956 honegneg 32095 opsqrlem6 32434 sto1i 32525 mdexchi 32624 fmptunsnop 32982 preiman0 32992 elrspunidl 33676 cnre2csqlem 34241 itgexpif 34934 subfacp1lem1 35566 rankaltopb 36366 poimirlem23 38177 dvtan 38204 dvasin 38238 heiborlem6 38350 trlcoat 41382 cdlemk54 41617 readvcot 43010 resubid 43055 sn-mul02 43111 iocunico 43825 relintab 44196 rfovcnvf1od 44617 ntrneifv3 44695 ntrneifv4 44698 clsneifv3 44723 clsneifv4 44724 neicvgfv 44734 snunioo1 46115 dvsinexp 46512 dvnprodlem1 46547 itgsubsticclem 46576 stirlinglem1 46675 fourierdlem80 46787 fourierdlem111 46818 sqwvfoura 46829 sqwvfourb 46830 fouriersw 46832 saliinclf 46927 smfco 47403 2oppf 49790 aacllem 50470 |
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