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| Mirrors > Home > ILE Home > Th. List > aprirr | GIF version | ||
| Description: The apartness relation given by df-apr 14204 for a nonzero ring is irreflexive. (Contributed by Jim Kingdon, 16-Feb-2025.) |
| Ref | Expression |
|---|---|
| aprirr.b | ⊢ (𝜑 → 𝐵 = (Base‘𝑅)) |
| aprirr.ap | ⊢ (𝜑 → # = (#r‘𝑅)) |
| aprirr.r | ⊢ (𝜑 → 𝑅 ∈ Ring) |
| aprirr.x | ⊢ (𝜑 → 𝑋 ∈ 𝐵) |
| aprirr.nz | ⊢ (𝜑 → (1r‘𝑅) ≠ (0g‘𝑅)) |
| Ref | Expression |
|---|---|
| aprirr | ⊢ (𝜑 → ¬ 𝑋 # 𝑋) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | aprirr.r | . . . . 5 ⊢ (𝜑 → 𝑅 ∈ Ring) | |
| 2 | 1 | ringgrpd 13928 | . . . 4 ⊢ (𝜑 → 𝑅 ∈ Grp) |
| 3 | aprirr.x | . . . . 5 ⊢ (𝜑 → 𝑋 ∈ 𝐵) | |
| 4 | aprirr.b | . . . . 5 ⊢ (𝜑 → 𝐵 = (Base‘𝑅)) | |
| 5 | 3, 4 | eleqtrd 2286 | . . . 4 ⊢ (𝜑 → 𝑋 ∈ (Base‘𝑅)) |
| 6 | eqid 2207 | . . . . 5 ⊢ (Base‘𝑅) = (Base‘𝑅) | |
| 7 | eqid 2207 | . . . . 5 ⊢ (0g‘𝑅) = (0g‘𝑅) | |
| 8 | eqid 2207 | . . . . 5 ⊢ (-g‘𝑅) = (-g‘𝑅) | |
| 9 | 6, 7, 8 | grpsubid 13577 | . . . 4 ⊢ ((𝑅 ∈ Grp ∧ 𝑋 ∈ (Base‘𝑅)) → (𝑋(-g‘𝑅)𝑋) = (0g‘𝑅)) |
| 10 | 2, 5, 9 | syl2anc 411 | . . 3 ⊢ (𝜑 → (𝑋(-g‘𝑅)𝑋) = (0g‘𝑅)) |
| 11 | aprirr.nz | . . . . 5 ⊢ (𝜑 → (1r‘𝑅) ≠ (0g‘𝑅)) | |
| 12 | 11 | neneqd 2399 | . . . 4 ⊢ (𝜑 → ¬ (1r‘𝑅) = (0g‘𝑅)) |
| 13 | eqid 2207 | . . . . . 6 ⊢ (Unit‘𝑅) = (Unit‘𝑅) | |
| 14 | eqid 2207 | . . . . . 6 ⊢ (1r‘𝑅) = (1r‘𝑅) | |
| 15 | 13, 7, 14 | 0unit 14052 | . . . . 5 ⊢ (𝑅 ∈ Ring → ((0g‘𝑅) ∈ (Unit‘𝑅) ↔ (1r‘𝑅) = (0g‘𝑅))) |
| 16 | 1, 15 | syl 14 | . . . 4 ⊢ (𝜑 → ((0g‘𝑅) ∈ (Unit‘𝑅) ↔ (1r‘𝑅) = (0g‘𝑅))) |
| 17 | 12, 16 | mtbird 675 | . . 3 ⊢ (𝜑 → ¬ (0g‘𝑅) ∈ (Unit‘𝑅)) |
| 18 | 10, 17 | eqneltrd 2303 | . 2 ⊢ (𝜑 → ¬ (𝑋(-g‘𝑅)𝑋) ∈ (Unit‘𝑅)) |
| 19 | aprirr.ap | . . 3 ⊢ (𝜑 → # = (#r‘𝑅)) | |
| 20 | eqidd 2208 | . . 3 ⊢ (𝜑 → (-g‘𝑅) = (-g‘𝑅)) | |
| 21 | eqidd 2208 | . . 3 ⊢ (𝜑 → (Unit‘𝑅) = (Unit‘𝑅)) | |
| 22 | 4, 19, 20, 21, 1, 3, 3 | aprval 14205 | . 2 ⊢ (𝜑 → (𝑋 # 𝑋 ↔ (𝑋(-g‘𝑅)𝑋) ∈ (Unit‘𝑅))) |
| 23 | 18, 22 | mtbird 675 | 1 ⊢ (𝜑 → ¬ 𝑋 # 𝑋) |
| Colors of variables: wff set class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 105 = wceq 1373 ∈ wcel 2178 ≠ wne 2378 class class class wbr 4060 ‘cfv 5291 (class class class)co 5969 Basecbs 12993 0gc0g 13249 Grpcgrp 13493 -gcsg 13495 1rcur 13882 Ringcrg 13919 Unitcui 14010 #rcapr 14203 |
| 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 615 ax-in2 616 ax-io 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-13 2180 ax-14 2181 ax-ext 2189 ax-coll 4176 ax-sep 4179 ax-nul 4187 ax-pow 4235 ax-pr 4270 ax-un 4499 ax-setind 4604 ax-cnex 8053 ax-resscn 8054 ax-1cn 8055 ax-1re 8056 ax-icn 8057 ax-addcl 8058 ax-addrcl 8059 ax-mulcl 8060 ax-addcom 8062 ax-addass 8064 ax-i2m1 8067 ax-0lt1 8068 ax-0id 8070 ax-rnegex 8071 ax-pre-ltirr 8074 ax-pre-lttrn 8076 ax-pre-ltadd 8078 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-fal 1379 df-nf 1485 df-sb 1787 df-eu 2058 df-mo 2059 df-clab 2194 df-cleq 2200 df-clel 2203 df-nfc 2339 df-ne 2379 df-nel 2474 df-ral 2491 df-rex 2492 df-reu 2493 df-rmo 2494 df-rab 2495 df-v 2779 df-sbc 3007 df-csb 3103 df-dif 3177 df-un 3179 df-in 3181 df-ss 3188 df-nul 3470 df-pw 3629 df-sn 3650 df-pr 3651 df-op 3653 df-uni 3866 df-int 3901 df-iun 3944 df-br 4061 df-opab 4123 df-mpt 4124 df-id 4359 df-xp 4700 df-rel 4701 df-cnv 4702 df-co 4703 df-dm 4704 df-rn 4705 df-res 4706 df-ima 4707 df-iota 5252 df-fun 5293 df-fn 5294 df-f 5295 df-f1 5296 df-fo 5297 df-f1o 5298 df-fv 5299 df-riota 5924 df-ov 5972 df-oprab 5973 df-mpo 5974 df-1st 6251 df-2nd 6252 df-tpos 6356 df-pnf 8146 df-mnf 8147 df-ltxr 8149 df-inn 9074 df-2 9132 df-3 9133 df-ndx 12996 df-slot 12997 df-base 12999 df-sets 13000 df-iress 13001 df-plusg 13083 df-mulr 13084 df-0g 13251 df-mgm 13349 df-sgrp 13395 df-mnd 13410 df-grp 13496 df-minusg 13497 df-sbg 13498 df-cmn 13783 df-abl 13784 df-mgp 13844 df-ur 13883 df-srg 13887 df-ring 13921 df-oppr 13991 df-dvdsr 14012 df-unit 14013 df-invr 14044 df-apr 14204 |
| This theorem is referenced by: aprap 14209 |
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