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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 2236 | . 2 ⊢ 𝐵 = 𝐴 |
| 4 | 1, 3 | eqtr2di 2282 | 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 2214 |
| This theorem depends on definitions: df-bi 117 df-cleq 2225 |
| This theorem is referenced by: iftrue 3626 iffalse 3629 difprsn1 3832 dmmptg 5259 relcoi1 5293 funimacnv 5431 dmmptd 5488 dffv3g 5665 dfimafn 5724 fvco2 5745 isoini 5990 iotaexel 6007 fvmpopr2d 6189 oprabco 6412 suppcofn 6465 ixpconstg 6941 unfiexmid 7177 undifdc 7183 sbthlemi4 7229 sbthlemi5 7230 sbthlemi6 7231 supval2ti 7285 exmidfodomrlemim 7503 suplocexprlemex 8033 eqneg 9002 zeo 9679 fseq1p1m1 10424 seq3val 10818 seqvalcd 10819 hashfzo 11182 hashxp 11186 hashfibclem 11199 wrdval 11220 wrdnval 11248 swrdccat3blem 11424 fsumconst 12133 modfsummod 12137 telfsumo 12145 fprodconst 12299 mulgcd 12705 algcvg 12738 phiprmpw 12912 phisum 12931 strslfv3 13247 resseqnbasd 13275 pwssnf1o 13500 imasplusg 13510 imasmulr 13511 ismgmid 13579 pws0g 13653 dfrhm2 14288 subrg1 14365 2idlbas 14650 psrbagfi 14810 psrlinv 14826 mplbascoe 14833 mplplusgg 14845 uptx 15126 resubmet 15408 ply1termlem 15594 lgsval4lem 15871 lgsquadlem2 15938 m1lgs 15945 uspgrf1oedg 16158 gsumgfsumlem 16851 |
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