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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 2242 | . 2 ⊢ 𝐵 = 𝐴 |
| 4 | 1, 3 | eqtr2di 2288 | 1 ⊢ (𝜑 → 𝐴 = 𝐶) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1402 |
| 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 1500 ax-gen 1502 ax-4 1563 ax-17 1579 ax-ext 2220 |
| This theorem depends on definitions: df-bi 117 df-cleq 2231 |
| This theorem is referenced by: iftrue 3645 iffalse 3648 difprsn1 3852 dmmptg 5283 relcoi1 5317 funimacnv 5455 dmmptd 5512 dffv3g 5689 dfimafn 5748 fvco2 5771 dfimafnf 5949 isoini 6018 iotaexel 6037 fvmpopr2d 6219 oprabco 6447 suppcofn 6500 ixpconstg 6983 unfiexmid 7219 undifdc 7225 sbthlemi4 7271 sbthlemi5 7272 sbthlemi6 7273 supval2ti 7329 exmidfodomrlemim 7547 suplocexprlemex 8083 eqneg 9056 zeo 9734 fseq1p1m1 10484 seq3val 10880 seqvalcd 10881 hashfzo 11246 hashxp 11250 hashfibclem 11265 wrdval 11290 wrdnval 11318 swrdccat3blem 11494 fsumconst 12204 modfsummod 12208 telfsumo 12216 fprodconst 12370 mulgcd 12776 algcvg 12809 phiprmpw 12983 phisum 13002 strslfv3 13381 resseqnbasd 13410 imasplusg 13612 imasmulr 13613 ismgmid 13680 gzsumshift 14132 pwssnf1o 14194 pws0g 14196 dfrhm2 14444 subrg1 14522 2idlbas 14835 rnascl 15017 psrbagfi 15042 psrlinv 15058 mplbascoe 15065 mplplusgg 15077 uptx 15358 resubmet 15640 ply1termlem 15826 birthdaylem1g 16070 birthdaylem2 16071 lgsval4lem 16113 lgsquadlem2 16180 m1lgs 16187 uspgrf1oedg 16400 |
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