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| Mirrors > Home > ILE Home > Th. List > mgpex | GIF version | ||
| Description: Existence of the multiplication group. If 𝑅 is known to be a semiring, see srgmgp 13947. (Contributed by Jim Kingdon, 10-Jan-2025.) |
| Ref | Expression |
|---|---|
| mgpbas.1 | ⊢ 𝑀 = (mulGrp‘𝑅) |
| Ref | Expression |
|---|---|
| mgpex | ⊢ (𝑅 ∈ 𝑉 → 𝑀 ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mgpbas.1 | . . 3 ⊢ 𝑀 = (mulGrp‘𝑅) | |
| 2 | eqid 2229 | . . 3 ⊢ (.r‘𝑅) = (.r‘𝑅) | |
| 3 | 1, 2 | mgpvalg 13902 | . 2 ⊢ (𝑅 ∈ 𝑉 → 𝑀 = (𝑅 sSet 〈(+g‘ndx), (.r‘𝑅)〉)) |
| 4 | plusgslid 13161 | . . . . 5 ⊢ (+g = Slot (+g‘ndx) ∧ (+g‘ndx) ∈ ℕ) | |
| 5 | 4 | simpri 113 | . . . 4 ⊢ (+g‘ndx) ∈ ℕ |
| 6 | 5 | a1i 9 | . . 3 ⊢ (𝑅 ∈ 𝑉 → (+g‘ndx) ∈ ℕ) |
| 7 | mulrslid 13181 | . . . 4 ⊢ (.r = Slot (.r‘ndx) ∧ (.r‘ndx) ∈ ℕ) | |
| 8 | 7 | slotex 13075 | . . 3 ⊢ (𝑅 ∈ 𝑉 → (.r‘𝑅) ∈ V) |
| 9 | setsex 13080 | . . 3 ⊢ ((𝑅 ∈ 𝑉 ∧ (+g‘ndx) ∈ ℕ ∧ (.r‘𝑅) ∈ V) → (𝑅 sSet 〈(+g‘ndx), (.r‘𝑅)〉) ∈ V) | |
| 10 | 6, 8, 9 | mpd3an23 1373 | . 2 ⊢ (𝑅 ∈ 𝑉 → (𝑅 sSet 〈(+g‘ndx), (.r‘𝑅)〉) ∈ V) |
| 11 | 3, 10 | eqeltrd 2306 | 1 ⊢ (𝑅 ∈ 𝑉 → 𝑀 ∈ V) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1395 ∈ wcel 2200 Vcvv 2799 〈cop 3669 ‘cfv 5318 (class class class)co 6007 ℕcn 9121 ndxcnx 13045 sSet csts 13046 Slot cslot 13047 +gcplusg 13126 .rcmulr 13127 mulGrpcmgp 13899 |
| 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-in1 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-sep 4202 ax-pow 4258 ax-pr 4293 ax-un 4524 ax-setind 4629 ax-cnex 8101 ax-resscn 8102 ax-1re 8104 ax-addrcl 8107 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-fal 1401 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ne 2401 df-ral 2513 df-rex 2514 df-rab 2517 df-v 2801 df-sbc 3029 df-csb 3125 df-dif 3199 df-un 3201 df-in 3203 df-ss 3210 df-pw 3651 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3889 df-int 3924 df-br 4084 df-opab 4146 df-mpt 4147 df-id 4384 df-xp 4725 df-rel 4726 df-cnv 4727 df-co 4728 df-dm 4729 df-rn 4730 df-res 4731 df-iota 5278 df-fun 5320 df-fn 5321 df-fv 5326 df-ov 6010 df-oprab 6011 df-mpo 6012 df-inn 9122 df-2 9180 df-3 9181 df-ndx 13051 df-slot 13052 df-sets 13055 df-plusg 13139 df-mulr 13140 df-mgp 13900 |
| This theorem is referenced by: mgpress 13910 isrngd 13932 rngpropd 13934 ringidss 14008 oppr1g 14061 unitgrpbasd 14095 unitgrp 14096 unitlinv 14106 unitrinv 14107 rngidpropdg 14126 rhmunitinv 14158 rnglidlmmgm 14476 expghmap 14587 |
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