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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 2234 | . 2 ⊢ 𝐵 = 𝐴 |
| 4 | 1, 3 | eqtr2di 2280 | 1 ⊢ (𝜑 → 𝐴 = 𝐶) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1397 |
| 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 1495 ax-gen 1497 ax-4 1558 ax-17 1574 ax-ext 2212 |
| This theorem depends on definitions: df-bi 117 df-cleq 2223 |
| This theorem is referenced by: iftrue 3611 iffalse 3614 difprsn1 3813 dmmptg 5236 relcoi1 5270 funimacnv 5408 dmmptd 5465 dffv3g 5638 dfimafn 5697 fvco2 5718 isoini 5964 iotaexel 5981 fvmpopr2d 6163 oprabco 6387 ixpconstg 6881 unfiexmid 7115 undifdc 7121 sbthlemi4 7164 sbthlemi5 7165 sbthlemi6 7166 supval2ti 7199 exmidfodomrlemim 7417 suplocexprlemex 7947 eqneg 8917 zeo 9590 fseq1p1m1 10334 seq3val 10728 seqvalcd 10729 hashfzo 11092 hashxp 11096 wrdval 11125 wrdnval 11153 swrdccat3blem 11329 fsumconst 12038 modfsummod 12042 telfsumo 12050 fprodconst 12204 mulgcd 12610 algcvg 12643 phiprmpw 12817 phisum 12836 strslfv3 13151 resseqnbasd 13179 pwssnf1o 13404 imasplusg 13414 imasmulr 13415 ismgmid 13483 pws0g 13557 dfrhm2 14192 subrg1 14269 2idlbas 14553 psrbagfi 14712 psrlinv 14727 mplbascoe 14734 mplplusgg 14746 uptx 15027 resubmet 15309 ply1termlem 15495 lgsval4lem 15769 lgsquadlem2 15836 m1lgs 15843 uspgrf1oedg 16056 gsumgfsumlem 16751 |
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