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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 2807 | . 2 ⊢ (𝜑 → 𝐴 = 𝐷) |
| 5 | 1, 4 | eqtr3d 2797 | 1 ⊢ (𝜑 → 𝐶 = 𝐷) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-9 2155 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-cleq 2752 |
| This theorem is used by: uneqin 4235 coi2 6260 foima 6794 f1imacnv 6834 fvsnun1 7180 fnsnsplit 7182 phplem2 9199 php3 9203 rankopb 9834 fin4en1 10311 fpwwe2 10652 winacard 10701 mul02lem1 11410 cnegex2 11416 crreczi 14292 hashinf 14399 hashcard 14419 cshw0 14865 cshwn 14868 sqrtneglem 15353 rlimresb 15652 bpoly3 16144 bpoly4 16145 sinhval 16242 coshval 16243 absefib 16286 efieq1re 16287 sadcaddlem 16547 sadaddlem 16556 qus0subgbas 19326 psgnsn 19647 odngen 19704 frlmup3 22013 mat0op 22641 restopnb 23400 cnmpt2t 23899 clmnegneg 25332 ncvspi 25384 volsup2 25833 plypf1 26438 pige3ALT 26757 sineq0 26761 eflog 26813 logef 26818 cxpsqrt 26940 dvcncxp1 26980 cubic2 27085 quart1 27093 asinsinlem 27128 asinsin 27129 2efiatan 27155 pclogsum 27451 lgsneg 27557 bdayfinbndlem1 28732 vc0 31055 vcm 31057 nvpi 31148 honegneg 32287 opsqrlem6 32626 sto1i 32717 mdexchi 32816 fmptunsnop 33172 preiman0 33182 elrspunidl 33856 cnre2csqlem 34420 itgexpif 35114 subfacp1lem1 35758 rankaltopb 36559 poimirlem23 38392 dvtan 38419 dvasin 38453 heiborlem6 38566 trlcoat 41596 cdlemk54 41831 readvcot 43239 resubid 43284 sn-mul02 43340 iocunico 44052 relintab 44423 rfovcnvf1od 44844 ntrneifv3 44922 ntrneifv4 44925 clsneifv3 44950 clsneifv4 44951 neicvgfv 44961 snunioo1 46342 dvsinexp 46739 dvnprodlem1 46774 itgsubsticclem 46803 stirlinglem1 46902 fourierdlem80 47014 fourierdlem111 47045 sqwvfoura 47056 sqwvfourb 47057 fouriersw 47059 saliinclf 47154 smfco 47630 2oppf 50058 aacllem 50772 |
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