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Mirrors > Home > MPE Home > Th. List > mulp1mod1 | Structured version Visualization version GIF version |
Description: The product of an integer and an integer greater than 1 increased by 1 is 1 modulo the integer greater than 1. (Contributed by AV, 15-Jul-2021.) |
Ref | Expression |
---|---|
mulp1mod1 | ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘2)) → (((𝑁 · 𝐴) + 1) mod 𝑁) = 1) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eluzelcn 11575 | . . . . . . . . 9 ⊢ (𝑁 ∈ (ℤ≥‘2) → 𝑁 ∈ ℂ) | |
2 | 1 | adantl 481 | . . . . . . . 8 ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘2)) → 𝑁 ∈ ℂ) |
3 | zcn 11259 | . . . . . . . . 9 ⊢ (𝐴 ∈ ℤ → 𝐴 ∈ ℂ) | |
4 | 3 | adantr 480 | . . . . . . . 8 ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘2)) → 𝐴 ∈ ℂ) |
5 | 2, 4 | mulcomd 9940 | . . . . . . 7 ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘2)) → (𝑁 · 𝐴) = (𝐴 · 𝑁)) |
6 | 5 | oveq1d 6564 | . . . . . 6 ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘2)) → ((𝑁 · 𝐴) mod 𝑁) = ((𝐴 · 𝑁) mod 𝑁)) |
7 | eluz2nn 11602 | . . . . . . . 8 ⊢ (𝑁 ∈ (ℤ≥‘2) → 𝑁 ∈ ℕ) | |
8 | 7 | nnrpd 11746 | . . . . . . 7 ⊢ (𝑁 ∈ (ℤ≥‘2) → 𝑁 ∈ ℝ+) |
9 | mulmod0 12538 | . . . . . . 7 ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ ℝ+) → ((𝐴 · 𝑁) mod 𝑁) = 0) | |
10 | 8, 9 | sylan2 490 | . . . . . 6 ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘2)) → ((𝐴 · 𝑁) mod 𝑁) = 0) |
11 | 6, 10 | eqtrd 2644 | . . . . 5 ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘2)) → ((𝑁 · 𝐴) mod 𝑁) = 0) |
12 | 11 | oveq1d 6564 | . . . 4 ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘2)) → (((𝑁 · 𝐴) mod 𝑁) + 1) = (0 + 1)) |
13 | 0p1e1 11009 | . . . 4 ⊢ (0 + 1) = 1 | |
14 | 12, 13 | syl6eq 2660 | . . 3 ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘2)) → (((𝑁 · 𝐴) mod 𝑁) + 1) = 1) |
15 | 14 | oveq1d 6564 | . 2 ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘2)) → ((((𝑁 · 𝐴) mod 𝑁) + 1) mod 𝑁) = (1 mod 𝑁)) |
16 | eluzelre 11574 | . . . . 5 ⊢ (𝑁 ∈ (ℤ≥‘2) → 𝑁 ∈ ℝ) | |
17 | 16 | adantl 481 | . . . 4 ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘2)) → 𝑁 ∈ ℝ) |
18 | zre 11258 | . . . . 5 ⊢ (𝐴 ∈ ℤ → 𝐴 ∈ ℝ) | |
19 | 18 | adantr 480 | . . . 4 ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘2)) → 𝐴 ∈ ℝ) |
20 | 17, 19 | remulcld 9949 | . . 3 ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘2)) → (𝑁 · 𝐴) ∈ ℝ) |
21 | 1red 9934 | . . 3 ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘2)) → 1 ∈ ℝ) | |
22 | 8 | adantl 481 | . . 3 ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘2)) → 𝑁 ∈ ℝ+) |
23 | modaddmod 12571 | . . 3 ⊢ (((𝑁 · 𝐴) ∈ ℝ ∧ 1 ∈ ℝ ∧ 𝑁 ∈ ℝ+) → ((((𝑁 · 𝐴) mod 𝑁) + 1) mod 𝑁) = (((𝑁 · 𝐴) + 1) mod 𝑁)) | |
24 | 20, 21, 22, 23 | syl3anc 1318 | . 2 ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘2)) → ((((𝑁 · 𝐴) mod 𝑁) + 1) mod 𝑁) = (((𝑁 · 𝐴) + 1) mod 𝑁)) |
25 | eluz2gt1 11636 | . . . . 5 ⊢ (𝑁 ∈ (ℤ≥‘2) → 1 < 𝑁) | |
26 | 16, 25 | jca 553 | . . . 4 ⊢ (𝑁 ∈ (ℤ≥‘2) → (𝑁 ∈ ℝ ∧ 1 < 𝑁)) |
27 | 26 | adantl 481 | . . 3 ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘2)) → (𝑁 ∈ ℝ ∧ 1 < 𝑁)) |
28 | 1mod 12564 | . . 3 ⊢ ((𝑁 ∈ ℝ ∧ 1 < 𝑁) → (1 mod 𝑁) = 1) | |
29 | 27, 28 | syl 17 | . 2 ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘2)) → (1 mod 𝑁) = 1) |
30 | 15, 24, 29 | 3eqtr3d 2652 | 1 ⊢ ((𝐴 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘2)) → (((𝑁 · 𝐴) + 1) mod 𝑁) = 1) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 383 = wceq 1475 ∈ wcel 1977 class class class wbr 4583 ‘cfv 5804 (class class class)co 6549 ℂcc 9813 ℝcr 9814 0cc0 9815 1c1 9816 + caddc 9818 · cmul 9820 < clt 9953 2c2 10947 ℤcz 11254 ℤ≥cuz 11563 ℝ+crp 11708 mod cmo 12530 |
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-wrecs 7294 df-recs 7355 df-rdg 7393 df-er 7629 df-en 7842 df-dom 7843 df-sdom 7844 df-sup 8231 df-inf 8232 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-n0 11170 df-z 11255 df-uz 11564 df-rp 11709 df-fl 12455 df-mod 12531 |
This theorem is referenced by: fmtnoprmfac2lem1 40016 |
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