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Mirrors > Home > MPE Home > Th. List > divalglem7 | Structured version Visualization version GIF version |
Description: Lemma for divalg 14964. (Contributed by Paul Chapman, 21-Mar-2011.) |
Ref | Expression |
---|---|
divalglem7.1 | ⊢ 𝐷 ∈ ℤ |
divalglem7.2 | ⊢ 𝐷 ≠ 0 |
Ref | Expression |
---|---|
divalglem7 | ⊢ ((𝑋 ∈ (0...((abs‘𝐷) − 1)) ∧ 𝐾 ∈ ℤ) → (𝐾 ≠ 0 → ¬ (𝑋 + (𝐾 · (abs‘𝐷))) ∈ (0...((abs‘𝐷) − 1)))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | oveq1 6556 | . . . . 5 ⊢ (𝑋 = if(𝑋 ∈ (0...((abs‘𝐷) − 1)), 𝑋, 0) → (𝑋 + (𝐾 · (abs‘𝐷))) = (if(𝑋 ∈ (0...((abs‘𝐷) − 1)), 𝑋, 0) + (𝐾 · (abs‘𝐷)))) | |
2 | 1 | eleq1d 2672 | . . . 4 ⊢ (𝑋 = if(𝑋 ∈ (0...((abs‘𝐷) − 1)), 𝑋, 0) → ((𝑋 + (𝐾 · (abs‘𝐷))) ∈ (0...((abs‘𝐷) − 1)) ↔ (if(𝑋 ∈ (0...((abs‘𝐷) − 1)), 𝑋, 0) + (𝐾 · (abs‘𝐷))) ∈ (0...((abs‘𝐷) − 1)))) |
3 | 2 | notbid 307 | . . 3 ⊢ (𝑋 = if(𝑋 ∈ (0...((abs‘𝐷) − 1)), 𝑋, 0) → (¬ (𝑋 + (𝐾 · (abs‘𝐷))) ∈ (0...((abs‘𝐷) − 1)) ↔ ¬ (if(𝑋 ∈ (0...((abs‘𝐷) − 1)), 𝑋, 0) + (𝐾 · (abs‘𝐷))) ∈ (0...((abs‘𝐷) − 1)))) |
4 | 3 | imbi2d 329 | . 2 ⊢ (𝑋 = if(𝑋 ∈ (0...((abs‘𝐷) − 1)), 𝑋, 0) → ((𝐾 ≠ 0 → ¬ (𝑋 + (𝐾 · (abs‘𝐷))) ∈ (0...((abs‘𝐷) − 1))) ↔ (𝐾 ≠ 0 → ¬ (if(𝑋 ∈ (0...((abs‘𝐷) − 1)), 𝑋, 0) + (𝐾 · (abs‘𝐷))) ∈ (0...((abs‘𝐷) − 1))))) |
5 | neeq1 2844 | . . 3 ⊢ (𝐾 = if(𝐾 ∈ ℤ, 𝐾, 0) → (𝐾 ≠ 0 ↔ if(𝐾 ∈ ℤ, 𝐾, 0) ≠ 0)) | |
6 | oveq1 6556 | . . . . . 6 ⊢ (𝐾 = if(𝐾 ∈ ℤ, 𝐾, 0) → (𝐾 · (abs‘𝐷)) = (if(𝐾 ∈ ℤ, 𝐾, 0) · (abs‘𝐷))) | |
7 | 6 | oveq2d 6565 | . . . . 5 ⊢ (𝐾 = if(𝐾 ∈ ℤ, 𝐾, 0) → (if(𝑋 ∈ (0...((abs‘𝐷) − 1)), 𝑋, 0) + (𝐾 · (abs‘𝐷))) = (if(𝑋 ∈ (0...((abs‘𝐷) − 1)), 𝑋, 0) + (if(𝐾 ∈ ℤ, 𝐾, 0) · (abs‘𝐷)))) |
8 | 7 | eleq1d 2672 | . . . 4 ⊢ (𝐾 = if(𝐾 ∈ ℤ, 𝐾, 0) → ((if(𝑋 ∈ (0...((abs‘𝐷) − 1)), 𝑋, 0) + (𝐾 · (abs‘𝐷))) ∈ (0...((abs‘𝐷) − 1)) ↔ (if(𝑋 ∈ (0...((abs‘𝐷) − 1)), 𝑋, 0) + (if(𝐾 ∈ ℤ, 𝐾, 0) · (abs‘𝐷))) ∈ (0...((abs‘𝐷) − 1)))) |
9 | 8 | notbid 307 | . . 3 ⊢ (𝐾 = if(𝐾 ∈ ℤ, 𝐾, 0) → (¬ (if(𝑋 ∈ (0...((abs‘𝐷) − 1)), 𝑋, 0) + (𝐾 · (abs‘𝐷))) ∈ (0...((abs‘𝐷) − 1)) ↔ ¬ (if(𝑋 ∈ (0...((abs‘𝐷) − 1)), 𝑋, 0) + (if(𝐾 ∈ ℤ, 𝐾, 0) · (abs‘𝐷))) ∈ (0...((abs‘𝐷) − 1)))) |
10 | 5, 9 | imbi12d 333 | . 2 ⊢ (𝐾 = if(𝐾 ∈ ℤ, 𝐾, 0) → ((𝐾 ≠ 0 → ¬ (if(𝑋 ∈ (0...((abs‘𝐷) − 1)), 𝑋, 0) + (𝐾 · (abs‘𝐷))) ∈ (0...((abs‘𝐷) − 1))) ↔ (if(𝐾 ∈ ℤ, 𝐾, 0) ≠ 0 → ¬ (if(𝑋 ∈ (0...((abs‘𝐷) − 1)), 𝑋, 0) + (if(𝐾 ∈ ℤ, 𝐾, 0) · (abs‘𝐷))) ∈ (0...((abs‘𝐷) − 1))))) |
11 | divalglem7.1 | . . . 4 ⊢ 𝐷 ∈ ℤ | |
12 | divalglem7.2 | . . . 4 ⊢ 𝐷 ≠ 0 | |
13 | nnabscl 13913 | . . . 4 ⊢ ((𝐷 ∈ ℤ ∧ 𝐷 ≠ 0) → (abs‘𝐷) ∈ ℕ) | |
14 | 11, 12, 13 | mp2an 704 | . . 3 ⊢ (abs‘𝐷) ∈ ℕ |
15 | 0z 11265 | . . . . 5 ⊢ 0 ∈ ℤ | |
16 | 0le0 10987 | . . . . 5 ⊢ 0 ≤ 0 | |
17 | 14 | nngt0i 10931 | . . . . 5 ⊢ 0 < (abs‘𝐷) |
18 | 14 | nnzi 11278 | . . . . . 6 ⊢ (abs‘𝐷) ∈ ℤ |
19 | elfzm11 12280 | . . . . . 6 ⊢ ((0 ∈ ℤ ∧ (abs‘𝐷) ∈ ℤ) → (0 ∈ (0...((abs‘𝐷) − 1)) ↔ (0 ∈ ℤ ∧ 0 ≤ 0 ∧ 0 < (abs‘𝐷)))) | |
20 | 15, 18, 19 | mp2an 704 | . . . . 5 ⊢ (0 ∈ (0...((abs‘𝐷) − 1)) ↔ (0 ∈ ℤ ∧ 0 ≤ 0 ∧ 0 < (abs‘𝐷))) |
21 | 15, 16, 17, 20 | mpbir3an 1237 | . . . 4 ⊢ 0 ∈ (0...((abs‘𝐷) − 1)) |
22 | 21 | elimel 4100 | . . 3 ⊢ if(𝑋 ∈ (0...((abs‘𝐷) − 1)), 𝑋, 0) ∈ (0...((abs‘𝐷) − 1)) |
23 | 15 | elimel 4100 | . . 3 ⊢ if(𝐾 ∈ ℤ, 𝐾, 0) ∈ ℤ |
24 | 14, 22, 23 | divalglem6 14959 | . 2 ⊢ (if(𝐾 ∈ ℤ, 𝐾, 0) ≠ 0 → ¬ (if(𝑋 ∈ (0...((abs‘𝐷) − 1)), 𝑋, 0) + (if(𝐾 ∈ ℤ, 𝐾, 0) · (abs‘𝐷))) ∈ (0...((abs‘𝐷) − 1))) |
25 | 4, 10, 24 | dedth2h 4090 | 1 ⊢ ((𝑋 ∈ (0...((abs‘𝐷) − 1)) ∧ 𝐾 ∈ ℤ) → (𝐾 ≠ 0 → ¬ (𝑋 + (𝐾 · (abs‘𝐷))) ∈ (0...((abs‘𝐷) − 1)))) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 195 ∧ wa 383 ∧ w3a 1031 = wceq 1475 ∈ wcel 1977 ≠ wne 2780 ifcif 4036 class class class wbr 4583 ‘cfv 5804 (class class class)co 6549 0cc0 9815 1c1 9816 + caddc 9818 · cmul 9820 < clt 9953 ≤ cle 9954 − cmin 10145 ℕcn 10897 ℤcz 11254 ...cfz 12197 abscabs 13822 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-cnex 9871 ax-resscn 9872 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-addrcl 9876 ax-mulcl 9877 ax-mulrcl 9878 ax-mulcom 9879 ax-addass 9880 ax-mulass 9881 ax-distr 9882 ax-i2m1 9883 ax-1ne0 9884 ax-1rid 9885 ax-rnegex 9886 ax-rrecex 9887 ax-cnre 9888 ax-pre-lttri 9889 ax-pre-lttrn 9890 ax-pre-ltadd 9891 ax-pre-mulgt0 9892 ax-pre-sup 9893 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-nel 2783 df-ral 2901 df-rex 2902 df-reu 2903 df-rmo 2904 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-pss 3556 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-tp 4130 df-op 4132 df-uni 4373 df-iun 4457 df-br 4584 df-opab 4644 df-mpt 4645 df-tr 4681 df-eprel 4949 df-id 4953 df-po 4959 df-so 4960 df-fr 4997 df-we 4999 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-pred 5597 df-ord 5643 df-on 5644 df-lim 5645 df-suc 5646 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-riota 6511 df-ov 6552 df-oprab 6553 df-mpt2 6554 df-om 6958 df-1st 7059 df-2nd 7060 df-wrecs 7294 df-recs 7355 df-rdg 7393 df-er 7629 df-en 7842 df-dom 7843 df-sdom 7844 df-sup 8231 df-pnf 9955 df-mnf 9956 df-xr 9957 df-ltxr 9958 df-le 9959 df-sub 10147 df-neg 10148 df-div 10564 df-nn 10898 df-2 10956 df-3 10957 df-n0 11170 df-z 11255 df-uz 11564 df-rp 11709 df-fz 12198 df-seq 12664 df-exp 12723 df-cj 13687 df-re 13688 df-im 13689 df-sqrt 13823 df-abs 13824 |
This theorem is referenced by: divalglem8 14961 |
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