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| Mirrors > Home > MPE Home > Th. List > Mathboxes > modm1nep1 | Structured version Visualization version GIF version | ||
| Description: A nonnegative integer less than a modulus greater than 2 plus/minus one are not equal modulo the modulus. (Contributed by AV, 15-Nov-2025.) |
| Ref | Expression |
|---|---|
| modm1nep1.i | ⊢ 𝐼 = (0..^𝑁) |
| Ref | Expression |
|---|---|
| modm1nep1 | ⊢ ((𝑁 ∈ (ℤ≥‘3) ∧ 𝑌 ∈ 𝐼) → ((𝑌 − 1) mod 𝑁) ≠ ((𝑌 + 1) mod 𝑁)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1elfzo1ceilhalf1 48243 | . . 3 ⊢ (𝑁 ∈ (ℤ≥‘3) → 1 ∈ (1..^(⌈‘(𝑁 / 2)))) | |
| 2 | 1 | adantr 486 | . 2 ⊢ ((𝑁 ∈ (ℤ≥‘3) ∧ 𝑌 ∈ 𝐼) → 1 ∈ (1..^(⌈‘(𝑁 / 2)))) |
| 3 | eqid 2760 | . . 3 ⊢ (1..^(⌈‘(𝑁 / 2))) = (1..^(⌈‘(𝑁 / 2))) | |
| 4 | modm1nep1.i | . . 3 ⊢ 𝐼 = (0..^𝑁) | |
| 5 | 3, 4 | modmknepk 48270 | . 2 ⊢ ((𝑁 ∈ (ℤ≥‘3) ∧ 𝑌 ∈ 𝐼 ∧ 1 ∈ (1..^(⌈‘(𝑁 / 2)))) → ((𝑌 − 1) mod 𝑁) ≠ ((𝑌 + 1) mod 𝑁)) |
| 6 | 2, 5 | mpd3an3 1491 | 1 ⊢ ((𝑁 ∈ (ℤ≥‘3) ∧ 𝑌 ∈ 𝐼) → ((𝑌 − 1) mod 𝑁) ≠ ((𝑌 + 1) mod 𝑁)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ≠ wne 2955 ‘cfv 6534 (class class class)co 7415 0cc0 11146 1c1 11147 + caddc 11149 − cmin 11487 / cdiv 11917 2c2 12341 3c3 12342 ℤ≥cuz 12909 ..^cfzo 13731 ⌈cceil 13874 mod cmo 13952 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7738 ax-cnex 11202 ax-resscn 11203 ax-1cn 11204 ax-icn 11205 ax-addcl 11206 ax-addrcl 11207 ax-mulcl 11208 ax-mulrcl 11209 ax-mulcom 11210 ax-addass 11211 ax-mulass 11212 ax-distr 11213 ax-i2m1 11214 ax-1ne0 11215 ax-1rid 11216 ax-rnegex 11217 ax-rrecex 11218 ax-cnre 11219 ax-pre-lttri 11220 ax-pre-lttrn 11221 ax-pre-ltadd 11222 ax-pre-mulgt0 11223 ax-pre-sup 11224 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6300 df-ord 6361 df-on 6362 df-lim 6363 df-suc 6364 df-iota 6490 df-fun 6536 df-fn 6537 df-f 6538 df-f1 6539 df-fo 6540 df-f1o 6541 df-fv 6542 df-riota 7372 df-ov 7418 df-oprab 7419 df-mpo 7420 df-om 7865 df-1st 7988 df-2nd 7989 df-frecs 8282 df-wrecs 8313 df-recs 8362 df-rdg 8401 df-er 8700 df-en 8957 df-dom 8958 df-sdom 8959 df-sup 9416 df-inf 9417 df-pnf 11291 df-mnf 11292 df-xr 11293 df-ltxr 11294 df-le 11295 df-sub 11489 df-neg 11490 df-div 11918 df-nn 12280 df-2 12349 df-3 12350 df-4 12351 df-n0 12551 df-z 12638 df-uz 12910 df-rp 13065 df-ico 13426 df-fz 13584 df-fzo 13732 df-fl 13875 df-ceil 13876 df-mod 13953 df-dvds 16365 |
| This theorem is used by: gpgedg2ov 48996 pgnioedg5 49042 |
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