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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 2810 | . 2 ⊢ (𝜑 → 𝐴 = 𝐷) |
| 5 | 1, 4 | eqtr3d 2800 | 1 ⊢ (𝜑 → 𝐶 = 𝐷) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1570 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-9 2153 ax-ext 2735 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-ex 1810 df-cleq 2755 |
| This theorem is referenced by: uneqin 4242 coi2 6265 foima 6797 f1imacnv 6837 fvsnun1 7180 fnsnsplit 7182 phplem2 9185 php3 9189 rankopb 9820 fin4en1 10288 fpwwe2 10623 winacard 10672 mul02lem1 11381 cnegex2 11387 crreczi 14260 hashinf 14367 hashcard 14387 cshw0 14827 cshwn 14830 sqrtneglem 15313 rlimresb 15612 bpoly3 16107 bpoly4 16108 sinhval 16205 coshval 16206 absefib 16249 efieq1re 16250 sadcaddlem 16510 sadaddlem 16519 qus0subgbas 19264 psgnsn 19585 odngen 19642 frlmup3 21950 mat0op 22576 restopnb 23332 cnmpt2t 23830 clmnegneg 25263 ncvspi 25315 volsup2 25764 plypf1 26369 pige3ALT 26685 sineq0 26689 eflog 26741 logef 26746 cxpsqrt 26868 dvcncxp1 26908 cubic2 27013 quart1 27021 asinsinlem 27056 asinsin 27057 2efiatan 27083 pclogsum 27379 lgsneg 27485 bdayfinbndlem1 28660 vc0 30926 vcm 30928 nvpi 31019 honegneg 32158 opsqrlem6 32497 sto1i 32588 mdexchi 32687 fmptunsnop 33045 preiman0 33055 elrspunidl 33736 cnre2csqlem 34300 itgexpif 34993 subfacp1lem1 35671 rankaltopb 36471 poimirlem23 38294 dvtan 38321 dvasin 38355 heiborlem6 38467 trlcoat 41497 cdlemk54 41732 readvcot 43125 resubid 43170 sn-mul02 43226 iocunico 43938 relintab 44309 rfovcnvf1od 44730 ntrneifv3 44808 ntrneifv4 44811 clsneifv3 44836 clsneifv4 44837 neicvgfv 44847 snunioo1 46228 dvsinexp 46625 dvnprodlem1 46660 itgsubsticclem 46689 stirlinglem1 46788 fourierdlem80 46900 fourierdlem111 46931 sqwvfoura 46942 sqwvfourb 46943 fouriersw 46945 saliinclf 47040 smfco 47516 2oppf 49910 aacllem 50621 |
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