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| Mirrors > Home > ILE Home > Th. List > eqtr4id | GIF version | ||
| Description: An equality transitivity deduction. (Contributed by NM, 29-Mar-1998.) |
| Ref | Expression |
|---|---|
| eqtr4id.2 | ⊢ 𝐴 = 𝐵 |
| eqtr4id.1 | ⊢ (𝜑 → 𝐶 = 𝐵) |
| Ref | Expression |
|---|---|
| eqtr4id | ⊢ (𝜑 → 𝐴 = 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqtr4id.1 | . 2 ⊢ (𝜑 → 𝐶 = 𝐵) | |
| 2 | eqtr4id.2 | . . 3 ⊢ 𝐴 = 𝐵 | |
| 3 | 2 | eqcomi 2233 | . 2 ⊢ 𝐵 = 𝐴 |
| 4 | 1, 3 | eqtr2di 2279 | 1 ⊢ (𝜑 → 𝐴 = 𝐶) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1395 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1493 ax-gen 1495 ax-4 1556 ax-17 1572 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-cleq 2222 |
| This theorem is referenced by: iftrue 3607 iffalse 3610 difprsn1 3807 dmmptg 5229 relcoi1 5263 funimacnv 5400 dmmptd 5457 dffv3g 5628 dfimafn 5687 fvco2 5708 isoini 5951 iotaexel 5968 fvmpopr2d 6150 oprabco 6374 ixpconstg 6867 unfiexmid 7096 undifdc 7102 sbthlemi4 7143 sbthlemi5 7144 sbthlemi6 7145 supval2ti 7178 exmidfodomrlemim 7395 suplocexprlemex 7925 eqneg 8895 zeo 9568 fseq1p1m1 10307 seq3val 10699 seqvalcd 10700 hashfzo 11062 hashxp 11066 wrdval 11092 wrdnval 11120 swrdccat3blem 11292 fsumconst 11986 modfsummod 11990 telfsumo 11998 fprodconst 12152 mulgcd 12558 algcvg 12591 phiprmpw 12765 phisum 12784 strslfv3 13099 resseqnbasd 13127 pwssnf1o 13352 imasplusg 13362 imasmulr 13363 ismgmid 13431 pws0g 13505 dfrhm2 14139 subrg1 14216 2idlbas 14500 psrbagfi 14658 psrlinv 14669 mplbascoe 14676 mplplusgg 14688 uptx 14969 resubmet 15251 ply1termlem 15437 lgsval4lem 15711 lgsquadlem2 15778 m1lgs 15785 uspgrf1oedg 15995 |
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