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Theorem rngidpropdg 14453
Description: The ring unity depends only on the ring's base set and multiplication operation. (Contributed by Mario Carneiro, 26-Dec-2014.)
Hypotheses
Ref Expression
rngidpropd.1 (𝜑𝐵 = (Base‘𝐾))
rngidpropd.2 (𝜑𝐵 = (Base‘𝐿))
rngidpropd.3 ((𝜑 ∧ (𝑥𝐵𝑦𝐵)) → (𝑥(.r𝐾)𝑦) = (𝑥(.r𝐿)𝑦))
rngidpropdg.k (𝜑𝐾𝑉)
rngidpropdg.l (𝜑𝐿𝑊)
Assertion
Ref Expression
rngidpropdg (𝜑 → (1r𝐾) = (1r𝐿))
Distinct variable groups:   𝑥,𝑦,𝐵   𝑥,𝐾,𝑦   𝑥,𝐿,𝑦   𝜑,𝑥,𝑦
Allowed substitution hints:   𝑉(𝑥, 𝑦)   𝑊(𝑥, 𝑦)

Proof of Theorem rngidpropdg
StepHypRef Expression
1 rngidpropd.1 . . . 4 (𝜑𝐵 = (Base‘𝐾))
2 rngidpropdg.k . . . . 5 (𝜑𝐾𝑉)
3 eqid 2238 . . . . . 6 (mulGrp‘𝐾) = (mulGrp‘𝐾)
4 eqid 2238 . . . . . 6 (Base‘𝐾) = (Base‘𝐾)
53, 4mgpbasg 14224 . . . . 5 (𝐾𝑉 → (Base‘𝐾) = (Base‘(mulGrp‘𝐾)))
62, 5syl 14 . . . 4 (𝜑 → (Base‘𝐾) = (Base‘(mulGrp‘𝐾)))
71, 6eqtrd 2271 . . 3 (𝜑𝐵 = (Base‘(mulGrp‘𝐾)))
8 rngidpropd.2 . . . 4 (𝜑𝐵 = (Base‘𝐿))
9 rngidpropdg.l . . . . 5 (𝜑𝐿𝑊)
10 eqid 2238 . . . . . 6 (mulGrp‘𝐿) = (mulGrp‘𝐿)
11 eqid 2238 . . . . . 6 (Base‘𝐿) = (Base‘𝐿)
1210, 11mgpbasg 14224 . . . . 5 (𝐿𝑊 → (Base‘𝐿) = (Base‘(mulGrp‘𝐿)))
139, 12syl 14 . . . 4 (𝜑 → (Base‘𝐿) = (Base‘(mulGrp‘𝐿)))
148, 13eqtrd 2271 . . 3 (𝜑𝐵 = (Base‘(mulGrp‘𝐿)))
153mgpex 14223 . . . 4 (𝐾𝑉 → (mulGrp‘𝐾) ∈ V)
162, 15syl 14 . . 3 (𝜑 → (mulGrp‘𝐾) ∈ V)
1710mgpex 14223 . . . 4 (𝐿𝑊 → (mulGrp‘𝐿) ∈ V)
189, 17syl 14 . . 3 (𝜑 → (mulGrp‘𝐿) ∈ V)
19 rngidpropd.3 . . . 4 ((𝜑 ∧ (𝑥𝐵𝑦𝐵)) → (𝑥(.r𝐾)𝑦) = (𝑥(.r𝐿)𝑦))
20 eqid 2238 . . . . . . 7 (.r𝐾) = (.r𝐾)
213, 20mgpplusgg 14221 . . . . . 6 (𝐾𝑉 → (.r𝐾) = (+g‘(mulGrp‘𝐾)))
222, 21syl 14 . . . . 5 (𝜑 → (.r𝐾) = (+g‘(mulGrp‘𝐾)))
2322oveqdr 6113 . . . 4 ((𝜑 ∧ (𝑥𝐵𝑦𝐵)) → (𝑥(.r𝐾)𝑦) = (𝑥(+g‘(mulGrp‘𝐾))𝑦))
24 eqid 2238 . . . . . . 7 (.r𝐿) = (.r𝐿)
2510, 24mgpplusgg 14221 . . . . . 6 (𝐿𝑊 → (.r𝐿) = (+g‘(mulGrp‘𝐿)))
269, 25syl 14 . . . . 5 (𝜑 → (.r𝐿) = (+g‘(mulGrp‘𝐿)))
2726oveqdr 6113 . . . 4 ((𝜑 ∧ (𝑥𝐵𝑦𝐵)) → (𝑥(.r𝐿)𝑦) = (𝑥(+g‘(mulGrp‘𝐿))𝑦))
2819, 23, 273eqtr3d 2279 . . 3 ((𝜑 ∧ (𝑥𝐵𝑦𝐵)) → (𝑥(+g‘(mulGrp‘𝐾))𝑦) = (𝑥(+g‘(mulGrp‘𝐿))𝑦))
297, 14, 16, 18, 28grpidpropdg 13694 . 2 (𝜑 → (0g‘(mulGrp‘𝐾)) = (0g‘(mulGrp‘𝐿)))
30 eqid 2238 . . . 4 (1r𝐾) = (1r𝐾)
313, 30ringidvalg 14264 . . 3 (𝐾𝑉 → (1r𝐾) = (0g‘(mulGrp‘𝐾)))
322, 31syl 14 . 2 (𝜑 → (1r𝐾) = (0g‘(mulGrp‘𝐾)))
33 eqid 2238 . . . 4 (1r𝐿) = (1r𝐿)
3410, 33ringidvalg 14264 . . 3 (𝐿𝑊 → (1r𝐿) = (0g‘(mulGrp‘𝐿)))
359, 34syl 14 . 2 (𝜑 → (1r𝐿) = (0g‘(mulGrp‘𝐿)))
3629, 32, 353eqtr4d 2281 1 (𝜑 → (1r𝐾) = (1r𝐿))
Colors of variables:    wff set class
This proof depends on syntax axioms:  wi 4  wa 104   = wceq 1402  wcel 2209  Vcvv 2821  cfv 5377  (class class class)co 6085  Basecbs 13352  +gcplusg 13431  .rcmulr 13432  0gc0g 13610  mulGrpcmgp 14217  1rcur 14262
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 623  ax-in2 624  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-sep 4249  ax-pow 4311  ax-pr 4346  ax-un 4578  ax-setind 4684  ax-cnex 8270  ax-resscn 8271  ax-1cn 8272  ax-1re 8273  ax-icn 8274  ax-addcl 8275  ax-addrcl 8276  ax-mulcl 8277  ax-addcom 8279  ax-addass 8281  ax-i2m1 8284  ax-0lt1 8285  ax-0id 8287  ax-rnegex 8288  ax-pre-ltirr 8291  ax-pre-ltadd 8295
This proof depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-fal 1408  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ne 2421  df-nel 2516  df-ral 2533  df-rex 2534  df-rab 2537  df-v 2823  df-sbc 3052  df-csb 3148  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-nul 3521  df-pw 3690  df-sn 3715  df-pr 3716  df-op 3718  df-uni 3936  df-int 3971  df-br 4131  df-opab 4193  df-mpt 4194  df-id 4438  df-xp 4780  df-rel 4781  df-cnv 4782  df-co 4783  df-dm 4784  df-rn 4785  df-res 4786  df-ima 4787  df-iota 5337  df-fun 5379  df-fn 5380  df-fv 5385  df-riota 6038  df-ov 6088  df-oprab 6089  df-mpo 6090  df-pnf 8362  df-mnf 8363  df-ltxr 8365  df-inn 9305  df-2 9363  df-3 9364  df-ndx 13355  df-slot 13356  df-base 13358  df-sets 13359  df-plusg 13444  df-mulr 13445  df-0g 13612  df-mgp 14218  df-ur 14263
This theorem is used by:  unitpropdg  14455  subrgpropd  14561  lmodprop2d  14685
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