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Mirrors > Home > MPE Home > Th. List > abvdom | Structured version Visualization version GIF version |
Description: Any ring with an absolute value is a domain, which is to say that it contains no zero divisors. (Contributed by Mario Carneiro, 10-Sep-2014.) |
Ref | Expression |
---|---|
abv0.a | ⊢ 𝐴 = (AbsVal‘𝑅) |
abvneg.b | ⊢ 𝐵 = (Base‘𝑅) |
abvrec.z | ⊢ 0 = (0g‘𝑅) |
abvdom.t | ⊢ · = (.r‘𝑅) |
Ref | Expression |
---|---|
abvdom | ⊢ ((𝐹 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → (𝑋 · 𝑌) ≠ 0 ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simp1 1133 | . . . 4 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → 𝐹 ∈ 𝐴) | |
2 | simp2l 1196 | . . . 4 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → 𝑋 ∈ 𝐵) | |
3 | simp3l 1198 | . . . 4 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → 𝑌 ∈ 𝐵) | |
4 | abv0.a | . . . . 5 ⊢ 𝐴 = (AbsVal‘𝑅) | |
5 | abvneg.b | . . . . 5 ⊢ 𝐵 = (Base‘𝑅) | |
6 | abvdom.t | . . . . 5 ⊢ · = (.r‘𝑅) | |
7 | 4, 5, 6 | abvmul 19681 | . . . 4 ⊢ ((𝐹 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝐹‘(𝑋 · 𝑌)) = ((𝐹‘𝑋) · (𝐹‘𝑌))) |
8 | 1, 2, 3, 7 | syl3anc 1368 | . . 3 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → (𝐹‘(𝑋 · 𝑌)) = ((𝐹‘𝑋) · (𝐹‘𝑌))) |
9 | 4, 5 | abvcl 19676 | . . . . . 6 ⊢ ((𝐹 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵) → (𝐹‘𝑋) ∈ ℝ) |
10 | 1, 2, 9 | syl2anc 587 | . . . . 5 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → (𝐹‘𝑋) ∈ ℝ) |
11 | 10 | recnd 10720 | . . . 4 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → (𝐹‘𝑋) ∈ ℂ) |
12 | 4, 5 | abvcl 19676 | . . . . . 6 ⊢ ((𝐹 ∈ 𝐴 ∧ 𝑌 ∈ 𝐵) → (𝐹‘𝑌) ∈ ℝ) |
13 | 1, 3, 12 | syl2anc 587 | . . . . 5 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → (𝐹‘𝑌) ∈ ℝ) |
14 | 13 | recnd 10720 | . . . 4 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → (𝐹‘𝑌) ∈ ℂ) |
15 | simp2r 1197 | . . . . 5 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → 𝑋 ≠ 0 ) | |
16 | abvrec.z | . . . . . 6 ⊢ 0 = (0g‘𝑅) | |
17 | 4, 5, 16 | abvne0 19679 | . . . . 5 ⊢ ((𝐹 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) → (𝐹‘𝑋) ≠ 0) |
18 | 1, 2, 15, 17 | syl3anc 1368 | . . . 4 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → (𝐹‘𝑋) ≠ 0) |
19 | simp3r 1199 | . . . . 5 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → 𝑌 ≠ 0 ) | |
20 | 4, 5, 16 | abvne0 19679 | . . . . 5 ⊢ ((𝐹 ∈ 𝐴 ∧ 𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 ) → (𝐹‘𝑌) ≠ 0) |
21 | 1, 3, 19, 20 | syl3anc 1368 | . . . 4 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → (𝐹‘𝑌) ≠ 0) |
22 | 11, 14, 18, 21 | mulne0d 11343 | . . 3 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → ((𝐹‘𝑋) · (𝐹‘𝑌)) ≠ 0) |
23 | 8, 22 | eqnetrd 3018 | . 2 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → (𝐹‘(𝑋 · 𝑌)) ≠ 0) |
24 | 4, 16 | abv0 19683 | . . . . 5 ⊢ (𝐹 ∈ 𝐴 → (𝐹‘ 0 ) = 0) |
25 | 1, 24 | syl 17 | . . . 4 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → (𝐹‘ 0 ) = 0) |
26 | fveqeq2 6672 | . . . 4 ⊢ ((𝑋 · 𝑌) = 0 → ((𝐹‘(𝑋 · 𝑌)) = 0 ↔ (𝐹‘ 0 ) = 0)) | |
27 | 25, 26 | syl5ibrcom 250 | . . 3 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → ((𝑋 · 𝑌) = 0 → (𝐹‘(𝑋 · 𝑌)) = 0)) |
28 | 27 | necon3d 2972 | . 2 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → ((𝐹‘(𝑋 · 𝑌)) ≠ 0 → (𝑋 · 𝑌) ≠ 0 )) |
29 | 23, 28 | mpd 15 | 1 ⊢ ((𝐹 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → (𝑋 · 𝑌) ≠ 0 ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 ∧ w3a 1084 = wceq 1538 ∈ wcel 2111 ≠ wne 2951 ‘cfv 6340 (class class class)co 7156 ℝcr 10587 0cc0 10588 · cmul 10593 Basecbs 16554 .rcmulr 16637 0gc0g 16784 AbsValcabv 19668 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2729 ax-sep 5173 ax-nul 5180 ax-pow 5238 ax-pr 5302 ax-un 7465 ax-cnex 10644 ax-resscn 10645 ax-1cn 10646 ax-icn 10647 ax-addcl 10648 ax-addrcl 10649 ax-mulcl 10650 ax-mulrcl 10651 ax-mulcom 10652 ax-addass 10653 ax-mulass 10654 ax-distr 10655 ax-i2m1 10656 ax-1ne0 10657 ax-1rid 10658 ax-rnegex 10659 ax-rrecex 10660 ax-cnre 10661 ax-pre-lttri 10662 ax-pre-lttrn 10663 ax-pre-ltadd 10664 ax-pre-mulgt0 10665 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3or 1085 df-3an 1086 df-tru 1541 df-fal 1551 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2557 df-eu 2588 df-clab 2736 df-cleq 2750 df-clel 2830 df-nfc 2901 df-ne 2952 df-nel 3056 df-ral 3075 df-rex 3076 df-reu 3077 df-rmo 3078 df-rab 3079 df-v 3411 df-sbc 3699 df-csb 3808 df-dif 3863 df-un 3865 df-in 3867 df-ss 3877 df-nul 4228 df-if 4424 df-pw 4499 df-sn 4526 df-pr 4528 df-op 4532 df-uni 4802 df-br 5037 df-opab 5099 df-mpt 5117 df-id 5434 df-po 5447 df-so 5448 df-xp 5534 df-rel 5535 df-cnv 5536 df-co 5537 df-dm 5538 df-rn 5539 df-res 5540 df-ima 5541 df-iota 6299 df-fun 6342 df-fn 6343 df-f 6344 df-f1 6345 df-fo 6346 df-f1o 6347 df-fv 6348 df-riota 7114 df-ov 7159 df-oprab 7160 df-mpo 7161 df-er 8305 df-map 8424 df-en 8541 df-dom 8542 df-sdom 8543 df-pnf 10728 df-mnf 10729 df-xr 10730 df-ltxr 10731 df-le 10732 df-sub 10923 df-neg 10924 df-ico 12798 df-0g 16786 df-mgm 17931 df-sgrp 17980 df-mnd 17991 df-grp 18185 df-ring 19380 df-abv 19669 |
This theorem is referenced by: abvn0b 20156 |
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