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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 2809 | . 2 ⊢ (𝜑 → 𝐴 = 𝐷) |
| 5 | 1, 4 | eqtr3d 2799 | 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 2734 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-cleq 2754 |
| This theorem is used by: uneqin 4238 coi2 6264 foima 6798 f1imacnv 6838 fvsnun1 7184 fnsnsplit 7186 phplem2 9203 php3 9207 rankopb 9838 fin4en1 10315 fpwwe2 10656 winacard 10705 mul02lem1 11414 cnegex2 11420 crreczi 14296 hashinf 14403 hashcard 14423 cshw0 14869 cshwn 14872 sqrtneglem 15357 rlimresb 15656 bpoly3 16150 bpoly4 16151 sinhval 16248 coshval 16249 absefib 16292 efieq1re 16293 sadcaddlem 16553 sadaddlem 16562 qus0subgbas 19332 psgnsn 19653 odngen 19710 frlmup3 22019 mat0op 22647 restopnb 23406 cnmpt2t 23905 clmnegneg 25338 ncvspi 25390 volsup2 25839 plypf1 26445 pige3ALT 26765 sineq0 26769 eflog 26821 logef 26826 cxpsqrt 26948 dvcncxp1 26988 cubic2 27093 quart1 27101 asinsinlem 27136 asinsin 27137 2efiatan 27163 pclogsum 27459 lgsneg 27565 bdayfinbndlem1 28740 vc0 31063 vcm 31065 nvpi 31156 honegneg 32295 opsqrlem6 32634 sto1i 32725 mdexchi 32824 fmptunsnop 33180 preiman0 33190 elrspunidl 33864 cnre2csqlem 34428 itgexpif 35122 subfacp1lem1 35766 rankaltopb 36567 poimirlem23 38400 dvtan 38427 dvasin 38461 heiborlem6 38574 trlcoat 41604 cdlemk54 41839 readvcot 43247 resubid 43292 sn-mul02 43348 iocunico 44060 relintab 44431 rfovcnvf1od 44852 ntrneifv3 44930 ntrneifv4 44933 clsneifv3 44958 clsneifv4 44959 neicvgfv 44969 snunioo1 46350 dvsinexp 46747 dvnprodlem1 46782 itgsubsticclem 46811 stirlinglem1 46910 fourierdlem80 47022 fourierdlem111 47053 sqwvfoura 47064 sqwvfourb 47065 fouriersw 47067 saliinclf 47162 smfco 47638 2oppf 50066 aacllem 50780 |
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