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| Mirrors > Home > ILE Home > Th. List > aprirr | GIF version | ||
| Description: The apartness relation given by df-apr 14298 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 14021 | . . . 4 ⊢ (𝜑 → 𝑅 ∈ Grp) |
| 3 | aprirr.x | . . . . 5 ⊢ (𝜑 → 𝑋 ∈ 𝐵) | |
| 4 | aprirr.b | . . . . 5 ⊢ (𝜑 → 𝐵 = (Base‘𝑅)) | |
| 5 | 3, 4 | eleqtrd 2310 | . . . 4 ⊢ (𝜑 → 𝑋 ∈ (Base‘𝑅)) |
| 6 | eqid 2231 | . . . . 5 ⊢ (Base‘𝑅) = (Base‘𝑅) | |
| 7 | eqid 2231 | . . . . 5 ⊢ (0g‘𝑅) = (0g‘𝑅) | |
| 8 | eqid 2231 | . . . . 5 ⊢ (-g‘𝑅) = (-g‘𝑅) | |
| 9 | 6, 7, 8 | grpsubid 13669 | . . . 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 2423 | . . . 4 ⊢ (𝜑 → ¬ (1r‘𝑅) = (0g‘𝑅)) |
| 13 | eqid 2231 | . . . . . 6 ⊢ (Unit‘𝑅) = (Unit‘𝑅) | |
| 14 | eqid 2231 | . . . . . 6 ⊢ (1r‘𝑅) = (1r‘𝑅) | |
| 15 | 13, 7, 14 | 0unit 14146 | . . . . 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 679 | . . 3 ⊢ (𝜑 → ¬ (0g‘𝑅) ∈ (Unit‘𝑅)) |
| 18 | 10, 17 | eqneltrd 2327 | . 2 ⊢ (𝜑 → ¬ (𝑋(-g‘𝑅)𝑋) ∈ (Unit‘𝑅)) |
| 19 | aprirr.ap | . . 3 ⊢ (𝜑 → # = (#r‘𝑅)) | |
| 20 | eqidd 2232 | . . 3 ⊢ (𝜑 → (-g‘𝑅) = (-g‘𝑅)) | |
| 21 | eqidd 2232 | . . 3 ⊢ (𝜑 → (Unit‘𝑅) = (Unit‘𝑅)) | |
| 22 | 4, 19, 20, 21, 1, 3, 3 | aprval 14299 | . 2 ⊢ (𝜑 → (𝑋 # 𝑋 ↔ (𝑋(-g‘𝑅)𝑋) ∈ (Unit‘𝑅))) |
| 23 | 18, 22 | mtbird 679 | 1 ⊢ (𝜑 → ¬ 𝑋 # 𝑋) |
| Colors of variables: wff set class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 105 = wceq 1397 ∈ wcel 2202 ≠ wne 2402 class class class wbr 4088 ‘cfv 5326 (class class class)co 6018 Basecbs 13084 0gc0g 13341 Grpcgrp 13585 -gcsg 13587 1rcur 13975 Ringcrg 14012 Unitcui 14103 #rcapr 14297 |
| 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-coll 4204 ax-sep 4207 ax-nul 4215 ax-pow 4264 ax-pr 4299 ax-un 4530 ax-setind 4635 ax-cnex 8123 ax-resscn 8124 ax-1cn 8125 ax-1re 8126 ax-icn 8127 ax-addcl 8128 ax-addrcl 8129 ax-mulcl 8130 ax-addcom 8132 ax-addass 8134 ax-i2m1 8137 ax-0lt1 8138 ax-0id 8140 ax-rnegex 8141 ax-pre-ltirr 8144 ax-pre-lttrn 8146 ax-pre-ltadd 8148 |
| 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-nel 2498 df-ral 2515 df-rex 2516 df-reu 2517 df-rmo 2518 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-nul 3495 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-int 3929 df-iun 3972 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-ima 4738 df-iota 5286 df-fun 5328 df-fn 5329 df-f 5330 df-f1 5331 df-fo 5332 df-f1o 5333 df-fv 5334 df-riota 5971 df-ov 6021 df-oprab 6022 df-mpo 6023 df-1st 6303 df-2nd 6304 df-tpos 6411 df-pnf 8216 df-mnf 8217 df-ltxr 8219 df-inn 9144 df-2 9202 df-3 9203 df-ndx 13087 df-slot 13088 df-base 13090 df-sets 13091 df-iress 13092 df-plusg 13175 df-mulr 13176 df-0g 13343 df-mgm 13441 df-sgrp 13487 df-mnd 13502 df-grp 13588 df-minusg 13589 df-sbg 13590 df-cmn 13875 df-abl 13876 df-mgp 13937 df-ur 13976 df-srg 13980 df-ring 14014 df-oppr 14084 df-dvdsr 14105 df-unit 14106 df-invr 14138 df-apr 14298 |
| This theorem is referenced by: aprap 14303 |
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