| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > primefld1cl | Structured version Visualization version GIF version | ||
| Description: The prime field contains the unity element of the division ring. (Contributed by Thierry Arnoux, 22-Aug-2023.) |
| Ref | Expression |
|---|---|
| primefld1cl.1 | ⊢ 1 = (1r‘𝑅) |
| Ref | Expression |
|---|---|
| primefld1cl | ⊢ (𝑅 ∈ DivRing → 1 ∈ ∩ (SubDRing‘𝑅)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | issdrg 20906 | . . . . . 6 ⊢ (𝑠 ∈ (SubDRing‘𝑅) ↔ (𝑅 ∈ DivRing ∧ 𝑠 ∈ (SubRing‘𝑅) ∧ (𝑅 ↾s 𝑠) ∈ DivRing)) | |
| 2 | 1 | simp2bi 1164 | . . . . 5 ⊢ (𝑠 ∈ (SubDRing‘𝑅) → 𝑠 ∈ (SubRing‘𝑅)) |
| 3 | 2 | a1i 11 | . . . 4 ⊢ (𝑅 ∈ DivRing → (𝑠 ∈ (SubDRing‘𝑅) → 𝑠 ∈ (SubRing‘𝑅))) |
| 4 | 3 | ssrdv 3946 | . . 3 ⊢ (𝑅 ∈ DivRing → (SubDRing‘𝑅) ⊆ (SubRing‘𝑅)) |
| 5 | eqid 2766 | . . . . 5 ⊢ (Base‘𝑅) = (Base‘𝑅) | |
| 6 | 5 | sdrgid 20910 | . . . 4 ⊢ (𝑅 ∈ DivRing → (Base‘𝑅) ∈ (SubDRing‘𝑅)) |
| 7 | 6 | ne0d 4298 | . . 3 ⊢ (𝑅 ∈ DivRing → (SubDRing‘𝑅) ≠ ∅) |
| 8 | subrgint 20709 | . . 3 ⊢ (((SubDRing‘𝑅) ⊆ (SubRing‘𝑅) ∧ (SubDRing‘𝑅) ≠ ∅) → ∩ (SubDRing‘𝑅) ∈ (SubRing‘𝑅)) | |
| 9 | 4, 7, 8 | syl2anc 596 | . 2 ⊢ (𝑅 ∈ DivRing → ∩ (SubDRing‘𝑅) ∈ (SubRing‘𝑅)) |
| 10 | primefld1cl.1 | . . 3 ⊢ 1 = (1r‘𝑅) | |
| 11 | 10 | subrg1cl 20694 | . 2 ⊢ (∩ (SubDRing‘𝑅) ∈ (SubRing‘𝑅) → 1 ∈ ∩ (SubDRing‘𝑅)) |
| 12 | 9, 11 | syl 18 | 1 ⊢ (𝑅 ∈ DivRing → 1 ∈ ∩ (SubDRing‘𝑅)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2146 ≠ wne 2961 ⊆ wss 3908 ∅c0 4289 ∩ cint 4915 ‘cfv 6540 (class class class)co 7416 Basecbs 17279 ↾s cress 17300 1rcur 20273 SubRingcsubrg 20683 DivRingcdr 20842 SubDRingcsdrg 20904 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2738 ax-sep 5260 ax-nul 5272 ax-pow 5339 ax-pr 5407 ax-un 7738 ax-cnex 11166 ax-resscn 11167 ax-1cn 11168 ax-icn 11169 ax-addcl 11170 ax-addrcl 11171 ax-mulcl 11172 ax-mulrcl 11173 ax-mulcom 11174 ax-addass 11175 ax-mulass 11176 ax-distr 11177 ax-i2m1 11178 ax-1ne0 11179 ax-1rid 11180 ax-rnegex 11181 ax-rrecex 11182 ax-cnre 11183 ax-pre-lttri 11184 ax-pre-lttrn 11185 ax-pre-ltadd 11186 ax-pre-mulgt0 11187 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2570 df-eu 2600 df-clab 2745 df-cleq 2758 df-clel 2841 df-nfc 2915 df-ne 2962 df-nel 3068 df-ral 3083 df-rex 3093 df-rmo 3372 df-reu 3373 df-rab 3420 df-v 3460 df-sbc 3748 df-csb 3857 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-pss 3928 df-nul 4290 df-if 4491 df-pw 4567 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4876 df-int 4916 df-iun 4961 df-br 5113 df-opab 5177 df-mpt 5196 df-tr 5222 df-id 5559 df-eprel 5564 df-po 5572 df-so 5573 df-fr 5617 df-we 5619 df-xp 5670 df-rel 5671 df-cnv 5672 df-co 5673 df-dm 5674 df-rn 5675 df-res 5676 df-ima 5677 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7373 df-ov 7419 df-oprab 7420 df-mpo 7421 df-om 7865 df-2nd 7989 df-frecs 8280 df-wrecs 8311 df-recs 8360 df-rdg 8399 df-er 8696 df-en 8946 df-dom 8947 df-sdom 8948 df-pnf 11255 df-mnf 11256 df-xr 11257 df-ltxr 11258 df-le 11259 df-sub 11453 df-neg 11454 df-nn 12244 df-2 12313 df-3 12314 df-sets 17234 df-slot 17252 df-ndx 17264 df-base 17280 df-ress 17301 df-plusg 17333 df-mulr 17334 df-0g 17504 df-mgm 18708 df-sgrp 18787 df-mnd 18803 df-grp 19013 df-minusg 19014 df-subg 19199 df-cmn 19862 df-abl 19863 df-mgp 20227 df-rng 20241 df-ur 20274 df-ring 20327 df-subrng 20660 df-subrg 20684 df-drng 20844 df-sdrg 20905 |
| This theorem is used by: (None) |
| Copyright terms: Public domain | W3C validator |