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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 2783 | . 2 ⊢ (𝜑 → 𝐴 = 𝐷) |
| 5 | 1, 4 | eqtr3d 2773 | 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 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1782 df-cleq 2728 |
| This theorem is referenced by: uneqin 4229 coi2 6228 foima 6757 f1imacnv 6796 fvsnun1 7137 fnsnsplit 7139 phplem2 9139 php3 9143 rankopb 9776 fin4en1 10231 fpwwe2 10566 winacard 10615 mul02lem1 11322 cnegex2 11328 crreczi 14190 hashinf 14297 hashcard 14317 cshw0 14756 cshwn 14759 sqrtneglem 15228 rlimresb 15527 bpoly3 16023 bpoly4 16024 sinhval 16121 coshval 16122 absefib 16165 efieq1re 16166 sadcaddlem 16426 sadaddlem 16435 qus0subgbas 19173 psgnsn 19495 odngen 19552 frlmup3 21780 mat0op 22384 restopnb 23140 cnmpt2t 23638 clmnegneg 25071 ncvspi 25123 volsup2 25572 plypf1 26177 pige3ALT 26484 sineq0 26488 eflog 26540 logef 26545 cxpsqrt 26667 dvcncxp1 26707 cubic2 26812 quart1 26820 asinsinlem 26855 asinsin 26856 2efiatan 26882 pclogsum 27178 lgsneg 27284 bdayfinbndlem1 28459 vc0 30645 vcm 30647 nvpi 30738 honegneg 31877 opsqrlem6 32216 sto1i 32307 mdexchi 32406 fmptunsnop 32773 preiman0 32783 elrspunidl 33488 cnre2csqlem 34054 itgexpif 34750 subfacp1lem1 35361 rankaltopb 36161 poimirlem23 37964 dvtan 37991 dvasin 38025 heiborlem6 38137 trlcoat 41169 cdlemk54 41404 readvcot 42796 resubid 42841 sn-mul02 42897 iocunico 43639 relintab 44010 rfovcnvf1od 44431 ntrneifv3 44509 ntrneifv4 44512 clsneifv3 44537 clsneifv4 44538 neicvgfv 44548 snunioo1 45942 dvsinexp 46339 dvnprodlem1 46374 itgsubsticclem 46403 stirlinglem1 46502 fourierdlem80 46614 fourierdlem111 46645 sqwvfoura 46656 sqwvfourb 46657 fouriersw 46659 saliinclf 46754 smfco 47230 2oppf 49607 aacllem 50276 |
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