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Mirrors > Home > ILE Home > Th. List > m1modge3gt1 | GIF version |
Description: Minus one modulo an integer greater than two is greater than one. (Contributed by AV, 14-Jul-2021.) |
Ref | Expression |
---|---|
m1modge3gt1 | ⊢ (𝑀 ∈ (ℤ≥‘3) → 1 < (-1 mod 𝑀)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 1p1e2 8155 | . . . 4 ⊢ (1 + 1) = 2 | |
2 | 2p1e3 8165 | . . . . . 6 ⊢ (2 + 1) = 3 | |
3 | eluzle 8631 | . . . . . 6 ⊢ (𝑀 ∈ (ℤ≥‘3) → 3 ≤ 𝑀) | |
4 | 2, 3 | syl5eqbr 3818 | . . . . 5 ⊢ (𝑀 ∈ (ℤ≥‘3) → (2 + 1) ≤ 𝑀) |
5 | 2z 8379 | . . . . . 6 ⊢ 2 ∈ ℤ | |
6 | eluzelz 8628 | . . . . . 6 ⊢ (𝑀 ∈ (ℤ≥‘3) → 𝑀 ∈ ℤ) | |
7 | zltp1le 8405 | . . . . . 6 ⊢ ((2 ∈ ℤ ∧ 𝑀 ∈ ℤ) → (2 < 𝑀 ↔ (2 + 1) ≤ 𝑀)) | |
8 | 5, 6, 7 | sylancr 405 | . . . . 5 ⊢ (𝑀 ∈ (ℤ≥‘3) → (2 < 𝑀 ↔ (2 + 1) ≤ 𝑀)) |
9 | 4, 8 | mpbird 165 | . . . 4 ⊢ (𝑀 ∈ (ℤ≥‘3) → 2 < 𝑀) |
10 | 1, 9 | syl5eqbr 3818 | . . 3 ⊢ (𝑀 ∈ (ℤ≥‘3) → (1 + 1) < 𝑀) |
11 | 1red 7134 | . . . 4 ⊢ (𝑀 ∈ (ℤ≥‘3) → 1 ∈ ℝ) | |
12 | eluzelre 8629 | . . . 4 ⊢ (𝑀 ∈ (ℤ≥‘3) → 𝑀 ∈ ℝ) | |
13 | 11, 11, 12 | ltaddsub2d 7646 | . . 3 ⊢ (𝑀 ∈ (ℤ≥‘3) → ((1 + 1) < 𝑀 ↔ 1 < (𝑀 − 1))) |
14 | 10, 13 | mpbid 145 | . 2 ⊢ (𝑀 ∈ (ℤ≥‘3) → 1 < (𝑀 − 1)) |
15 | eluzge3nn 8660 | . . 3 ⊢ (𝑀 ∈ (ℤ≥‘3) → 𝑀 ∈ ℕ) | |
16 | m1modnnsub1 9372 | . . 3 ⊢ (𝑀 ∈ ℕ → (-1 mod 𝑀) = (𝑀 − 1)) | |
17 | 15, 16 | syl 14 | . 2 ⊢ (𝑀 ∈ (ℤ≥‘3) → (-1 mod 𝑀) = (𝑀 − 1)) |
18 | 14, 17 | breqtrrd 3811 | 1 ⊢ (𝑀 ∈ (ℤ≥‘3) → 1 < (-1 mod 𝑀)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ↔ wb 103 = wceq 1284 ∈ wcel 1433 class class class wbr 3785 ‘cfv 4922 (class class class)co 5532 1c1 6982 + caddc 6984 < clt 7153 ≤ cle 7154 − cmin 7279 -cneg 7280 ℕcn 8039 2c2 8089 3c3 8090 ℤcz 8351 ℤ≥cuz 8619 mod cmo 9324 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-in1 576 ax-in2 577 ax-io 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-13 1444 ax-14 1445 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 ax-sep 3896 ax-pow 3948 ax-pr 3964 ax-un 4188 ax-setind 4280 ax-cnex 7067 ax-resscn 7068 ax-1cn 7069 ax-1re 7070 ax-icn 7071 ax-addcl 7072 ax-addrcl 7073 ax-mulcl 7074 ax-mulrcl 7075 ax-addcom 7076 ax-mulcom 7077 ax-addass 7078 ax-mulass 7079 ax-distr 7080 ax-i2m1 7081 ax-0lt1 7082 ax-1rid 7083 ax-0id 7084 ax-rnegex 7085 ax-precex 7086 ax-cnre 7087 ax-pre-ltirr 7088 ax-pre-ltwlin 7089 ax-pre-lttrn 7090 ax-pre-apti 7091 ax-pre-ltadd 7092 ax-pre-mulgt0 7093 ax-pre-mulext 7094 ax-arch 7095 |
This theorem depends on definitions: df-bi 115 df-3or 920 df-3an 921 df-tru 1287 df-fal 1290 df-nf 1390 df-sb 1686 df-eu 1944 df-mo 1945 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-ne 2246 df-nel 2340 df-ral 2353 df-rex 2354 df-reu 2355 df-rmo 2356 df-rab 2357 df-v 2603 df-sbc 2816 df-csb 2909 df-dif 2975 df-un 2977 df-in 2979 df-ss 2986 df-pw 3384 df-sn 3404 df-pr 3405 df-op 3407 df-uni 3602 df-int 3637 df-iun 3680 df-br 3786 df-opab 3840 df-mpt 3841 df-id 4048 df-po 4051 df-iso 4052 df-xp 4369 df-rel 4370 df-cnv 4371 df-co 4372 df-dm 4373 df-rn 4374 df-res 4375 df-ima 4376 df-iota 4887 df-fun 4924 df-fn 4925 df-f 4926 df-fv 4930 df-riota 5488 df-ov 5535 df-oprab 5536 df-mpt2 5537 df-1st 5787 df-2nd 5788 df-pnf 7155 df-mnf 7156 df-xr 7157 df-ltxr 7158 df-le 7159 df-sub 7281 df-neg 7282 df-reap 7675 df-ap 7682 df-div 7761 df-inn 8040 df-2 8098 df-3 8099 df-n0 8289 df-z 8352 df-uz 8620 df-q 8705 df-rp 8735 df-fl 9274 df-mod 9325 |
This theorem is referenced by: (None) |
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