ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  srgfcl GIF version

Theorem srgfcl 14277
Description: Functionality of the multiplication operation of a ring. (Contributed by Steve Rodriguez, 9-Sep-2007.) (Revised by AV, 24-Aug-2021.)
Hypotheses
Ref Expression
srgfcl.b 𝐵 = (Base‘𝑅)
srgfcl.t · = (.r𝑅)
Assertion
Ref Expression
srgfcl ((𝑅 ∈ SRing ∧ · Fn (𝐵 × 𝐵)) → · :(𝐵 × 𝐵)⟶𝐵)

Proof of Theorem srgfcl
Dummy variables 𝑎 𝑏 𝑐 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 simpr 110 . 2 ((𝑅 ∈ SRing ∧ · Fn (𝐵 × 𝐵)) → · Fn (𝐵 × 𝐵))
2 srgfcl.b . . . . . . . 8 𝐵 = (Base‘𝑅)
3 srgfcl.t . . . . . . . 8 · = (.r𝑅)
42, 3srgcl 14274 . . . . . . 7 ((𝑅 ∈ SRing ∧ 𝑎𝐵𝑏𝐵) → (𝑎 · 𝑏) ∈ 𝐵)
543expb 1235 . . . . . 6 ((𝑅 ∈ SRing ∧ (𝑎𝐵𝑏𝐵)) → (𝑎 · 𝑏) ∈ 𝐵)
65ralrimivva 2632 . . . . 5 (𝑅 ∈ SRing → ∀𝑎𝐵𝑏𝐵 (𝑎 · 𝑏) ∈ 𝐵)
7 fveq2 5695 . . . . . . . 8 (𝑐 = ⟨𝑎, 𝑏⟩ → ( ·𝑐) = ( · ‘⟨𝑎, 𝑏⟩))
87eleq1d 2307 . . . . . . 7 (𝑐 = ⟨𝑎, 𝑏⟩ → (( ·𝑐) ∈ 𝐵 ↔ ( · ‘⟨𝑎, 𝑏⟩) ∈ 𝐵))
9 df-ov 6088 . . . . . . . . 9 (𝑎 · 𝑏) = ( · ‘⟨𝑎, 𝑏⟩)
109eqcomi 2242 . . . . . . . 8 ( · ‘⟨𝑎, 𝑏⟩) = (𝑎 · 𝑏)
1110eleq1i 2304 . . . . . . 7 (( · ‘⟨𝑎, 𝑏⟩) ∈ 𝐵 ↔ (𝑎 · 𝑏) ∈ 𝐵)
128, 11bitrdi 196 . . . . . 6 (𝑐 = ⟨𝑎, 𝑏⟩ → (( ·𝑐) ∈ 𝐵 ↔ (𝑎 · 𝑏) ∈ 𝐵))
1312ralxp 4923 . . . . 5 (∀𝑐 ∈ (𝐵 × 𝐵)( ·𝑐) ∈ 𝐵 ↔ ∀𝑎𝐵𝑏𝐵 (𝑎 · 𝑏) ∈ 𝐵)
146, 13sylibr 134 . . . 4 (𝑅 ∈ SRing → ∀𝑐 ∈ (𝐵 × 𝐵)( ·𝑐) ∈ 𝐵)
1514adantr 276 . . 3 ((𝑅 ∈ SRing ∧ · Fn (𝐵 × 𝐵)) → ∀𝑐 ∈ (𝐵 × 𝐵)( ·𝑐) ∈ 𝐵)
16 fnfvrnss 5868 . . 3 (( · Fn (𝐵 × 𝐵) ∧ ∀𝑐 ∈ (𝐵 × 𝐵)( ·𝑐) ∈ 𝐵) → ran ·𝐵)
171, 15, 16syl2anc 415 . 2 ((𝑅 ∈ SRing ∧ · Fn (𝐵 × 𝐵)) → ran ·𝐵)
18 df-f 5381 . 2 ( · :(𝐵 × 𝐵)⟶𝐵 ↔ ( · Fn (𝐵 × 𝐵) ∧ ran ·𝐵))
191, 17, 18sylanbrc 421 1 ((𝑅 ∈ SRing ∧ · Fn (𝐵 × 𝐵)) → · :(𝐵 × 𝐵)⟶𝐵)
Colors of variables:    wff set class
This proof depends on syntax axioms:  wi 4  wa 104   = wceq 1402  wcel 2209  wral 2528  wss 3220  cop 3712   × cxp 4772  ran crn 4775   Fn wfn 5372  wf 5373  cfv 5377  (class class class)co 6085  Basecbs 13352  .rcmulr 13432  SRingcsrg 14267
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-iun 4014  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-iota 5337  df-fun 5379  df-fn 5380  df-f 5381  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-mgm 13676  df-sgrp 13717  df-mnd 13730  df-mgp 14218  df-srg 14268
This theorem is used by: (None)
  Copyright terms: Public domain W3C validator