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Mirrors > Home > ILE Home > Th. List > 3eqtr4g | GIF version |
Description: A chained equality inference, useful for converting to definitions. (Contributed by NM, 5-Aug-1993.) |
Ref | Expression |
---|---|
3eqtr4g.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
3eqtr4g.2 | ⊢ 𝐶 = 𝐴 |
3eqtr4g.3 | ⊢ 𝐷 = 𝐵 |
Ref | Expression |
---|---|
3eqtr4g | ⊢ (𝜑 → 𝐶 = 𝐷) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3eqtr4g.2 | . . 3 ⊢ 𝐶 = 𝐴 | |
2 | 3eqtr4g.1 | . . 3 ⊢ (𝜑 → 𝐴 = 𝐵) | |
3 | 1, 2 | syl5eq 2185 | . 2 ⊢ (𝜑 → 𝐶 = 𝐵) |
4 | 3eqtr4g.3 | . 2 ⊢ 𝐷 = 𝐵 | |
5 | 3, 4 | eqtr4di 2191 | 1 ⊢ (𝜑 → 𝐶 = 𝐷) |
Colors of variables: wff set class |
Syntax hints: → wi 4 = wceq 1332 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1424 ax-gen 1426 ax-4 1488 ax-17 1507 ax-ext 2122 |
This theorem depends on definitions: df-bi 116 df-cleq 2133 |
This theorem is referenced by: rabbidva2 2676 rabeqf 2679 csbeq1 3010 csbeq2 3031 csbeq2d 3032 csbnestgf 3057 difeq1 3192 difeq2 3193 uneq2 3229 ineq2 3276 dfrab3ss 3359 ifeq1 3482 ifeq2 3483 ifbi 3497 pweq 3518 sneq 3543 csbsng 3592 rabsn 3598 preq1 3608 preq2 3609 tpeq1 3617 tpeq2 3618 tpeq3 3619 prprc1 3639 opeq1 3713 opeq2 3714 oteq1 3722 oteq2 3723 oteq3 3724 csbunig 3752 unieq 3753 inteq 3782 iineq1 3835 iineq2 3838 dfiin2g 3854 iinrabm 3883 iinin1m 3890 iinxprg 3895 opabbid 4001 mpteq12f 4016 suceq 4332 xpeq1 4561 xpeq2 4562 csbxpg 4628 csbdmg 4741 rneq 4774 reseq1 4821 reseq2 4822 csbresg 4830 resindm 4869 resmpt 4875 resmptf 4877 imaeq1 4884 imaeq2 4885 mptcnv 4949 csbrng 5008 dmpropg 5019 rnpropg 5026 cores 5050 cores2 5059 xpcom 5093 iotaeq 5104 iotabi 5105 fntpg 5187 funimaexg 5215 fveq1 5428 fveq2 5429 fvres 5453 csbfv12g 5465 fnimapr 5489 fndmin 5535 fprg 5611 fsnunfv 5629 fsnunres 5630 fliftf 5708 isoini2 5728 riotaeqdv 5739 riotabidv 5740 riotauni 5744 riotabidva 5754 snriota 5767 oveq 5788 oveq1 5789 oveq2 5790 oprabbid 5832 mpoeq123 5838 mpoeq123dva 5840 mpoeq3dva 5843 resmpo 5877 ovres 5918 f1ocnvd 5980 ofeq 5992 ofreq 5993 f1od2 6140 ovtposg 6164 recseq 6211 tfr2a 6226 rdgeq1 6276 rdgeq2 6277 freceq1 6297 freceq2 6298 eceq1 6472 eceq2 6474 qseq1 6485 qseq2 6486 uniqs 6495 ecinxp 6512 qsinxp 6513 erovlem 6529 ixpeq1 6611 supeq1 6881 supeq2 6884 supeq3 6885 supeq123d 6886 infeq1 6906 infeq2 6909 infeq3 6910 infeq123d 6911 infisoti 6927 djueq12 6932 addpiord 7148 mulpiord 7149 00sr 7601 negeq 7979 csbnegg 7984 negsubdi 8042 mulneg1 8181 deceq1 9210 deceq2 9211 xnegeq 9640 fseq1p1m1 9905 frec2uzsucd 10205 frec2uzrdg 10213 frecuzrdgsuc 10218 frecuzrdgg 10220 frecuzrdgsuctlem 10227 seqeq1 10252 seqeq2 10253 seqeq3 10254 seqvalcd 10263 seq3f1olemp 10306 hashprg 10586 shftdm 10626 resqrexlemfp1 10813 negfi 11031 sumeq1 11156 sumeq2 11160 zsumdc 11185 isumss2 11194 fsumsplitsnun 11220 isumclim3 11224 fisumcom2 11239 isumshft 11291 prodeq1f 11353 prodeq2w 11357 prodeq2 11358 zproddc 11380 ege2le3 11414 efgt1p2 11438 dfphi2 11932 sloteq 12003 setsslid 12048 metreslem 12588 comet 12707 cnmetdval 12737 redcwlpolemeq1 13421 |
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