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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 2238 | . 2 ⊢ 𝐵 = 𝐴 |
| 4 | 1, 3 | eqtr2di 2284 | 1 ⊢ (𝜑 → 𝐴 = 𝐶) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1398 |
| 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 1496 ax-gen 1498 ax-4 1559 ax-17 1575 ax-ext 2216 |
| This theorem depends on definitions: df-bi 117 df-cleq 2227 |
| This theorem is referenced by: iftrue 3629 iffalse 3632 difprsn1 3835 dmmptg 5262 relcoi1 5296 funimacnv 5434 dmmptd 5491 dffv3g 5668 dfimafn 5727 fvco2 5748 isoini 5993 iotaexel 6010 fvmpopr2d 6192 oprabco 6415 suppcofn 6468 ixpconstg 6944 unfiexmid 7180 undifdc 7186 sbthlemi4 7232 sbthlemi5 7233 sbthlemi6 7234 supval2ti 7288 exmidfodomrlemim 7506 suplocexprlemex 8042 eqneg 9011 zeo 9689 fseq1p1m1 10435 seq3val 10829 seqvalcd 10830 hashfzo 11195 hashxp 11199 hashfibclem 11214 wrdval 11235 wrdnval 11263 swrdccat3blem 11439 fsumconst 12148 modfsummod 12152 telfsumo 12160 fprodconst 12314 mulgcd 12720 algcvg 12753 phiprmpw 12927 phisum 12946 strslfv3 13279 resseqnbasd 13307 pwssnf1o 13532 imasplusg 13542 imasmulr 13543 ismgmid 13611 pws0g 13685 dfrhm2 14321 subrg1 14399 2idlbas 14712 psrbagfi 14872 psrlinv 14888 mplbascoe 14895 mplplusgg 14907 uptx 15188 resubmet 15470 ply1termlem 15656 lgsval4lem 15933 lgsquadlem2 16000 m1lgs 16007 uspgrf1oedg 16220 gsumgfsumlem 16914 |
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