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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 13980. (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 2231 | . . 3 ⊢ (.r‘𝑅) = (.r‘𝑅) | |
| 3 | 1, 2 | mgpvalg 13935 | . 2 ⊢ (𝑅 ∈ 𝑉 → 𝑀 = (𝑅 sSet 〈(+g‘ndx), (.r‘𝑅)〉)) |
| 4 | plusgslid 13194 | . . . . 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 13214 | . . . 4 ⊢ (.r = Slot (.r‘ndx) ∧ (.r‘ndx) ∈ ℕ) | |
| 8 | 7 | slotex 13108 | . . 3 ⊢ (𝑅 ∈ 𝑉 → (.r‘𝑅) ∈ V) |
| 9 | setsex 13113 | . . 3 ⊢ ((𝑅 ∈ 𝑉 ∧ (+g‘ndx) ∈ ℕ ∧ (.r‘𝑅) ∈ V) → (𝑅 sSet 〈(+g‘ndx), (.r‘𝑅)〉) ∈ V) | |
| 10 | 6, 8, 9 | mpd3an23 1375 | . 2 ⊢ (𝑅 ∈ 𝑉 → (𝑅 sSet 〈(+g‘ndx), (.r‘𝑅)〉) ∈ V) |
| 11 | 3, 10 | eqeltrd 2308 | 1 ⊢ (𝑅 ∈ 𝑉 → 𝑀 ∈ V) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1397 ∈ wcel 2202 Vcvv 2802 〈cop 3672 ‘cfv 5326 (class class class)co 6017 ℕcn 9142 ndxcnx 13078 sSet csts 13079 Slot cslot 13080 +gcplusg 13159 .rcmulr 13160 mulGrpcmgp 13932 |
| 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 619 ax-in2 620 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 ax-setind 4635 ax-cnex 8122 ax-resscn 8123 ax-1re 8125 ax-addrcl 8128 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ne 2403 df-ral 2515 df-rex 2516 df-rab 2519 df-v 2804 df-sbc 3032 df-csb 3128 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-int 3929 df-br 4089 df-opab 4151 df-mpt 4152 df-id 4390 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-rn 4736 df-res 4737 df-iota 5286 df-fun 5328 df-fn 5329 df-fv 5334 df-ov 6020 df-oprab 6021 df-mpo 6022 df-inn 9143 df-2 9201 df-3 9202 df-ndx 13084 df-slot 13085 df-sets 13088 df-plusg 13172 df-mulr 13173 df-mgp 13933 |
| This theorem is referenced by: mgpress 13943 isrngd 13965 rngpropd 13967 ringidss 14041 oppr1g 14094 unitgrpbasd 14128 unitgrp 14129 unitlinv 14139 unitrinv 14140 rngidpropdg 14159 rhmunitinv 14191 rnglidlmmgm 14509 expghmap 14620 |
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