| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > dvdsle | Structured version Visualization version GIF version | ||
| Description: The divisors of a positive integer are bounded by it. The proof does not use /. (Contributed by Paul Chapman, 21-Mar-2011.) |
| Ref | Expression |
|---|---|
| dvdsle | ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℕ) → (𝑀 ∥ 𝑁 → 𝑀 ≤ 𝑁)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | breq2 5099 | . . . . . . . . . . . . 13 ⊢ (𝑀 = if(𝑀 ∈ ℤ, 𝑀, 1) → (𝑁 < 𝑀 ↔ 𝑁 < if(𝑀 ∈ ℤ, 𝑀, 1))) | |
| 2 | oveq2 7361 | . . . . . . . . . . . . . 14 ⊢ (𝑀 = if(𝑀 ∈ ℤ, 𝑀, 1) → (𝑛 · 𝑀) = (𝑛 · if(𝑀 ∈ ℤ, 𝑀, 1))) | |
| 3 | 2 | neeq1d 2984 | . . . . . . . . . . . . 13 ⊢ (𝑀 = if(𝑀 ∈ ℤ, 𝑀, 1) → ((𝑛 · 𝑀) ≠ 𝑁 ↔ (𝑛 · if(𝑀 ∈ ℤ, 𝑀, 1)) ≠ 𝑁)) |
| 4 | 1, 3 | imbi12d 344 | . . . . . . . . . . . 12 ⊢ (𝑀 = if(𝑀 ∈ ℤ, 𝑀, 1) → ((𝑁 < 𝑀 → (𝑛 · 𝑀) ≠ 𝑁) ↔ (𝑁 < if(𝑀 ∈ ℤ, 𝑀, 1) → (𝑛 · if(𝑀 ∈ ℤ, 𝑀, 1)) ≠ 𝑁))) |
| 5 | breq1 5098 | . . . . . . . . . . . . 13 ⊢ (𝑁 = if(𝑁 ∈ ℕ, 𝑁, 1) → (𝑁 < if(𝑀 ∈ ℤ, 𝑀, 1) ↔ if(𝑁 ∈ ℕ, 𝑁, 1) < if(𝑀 ∈ ℤ, 𝑀, 1))) | |
| 6 | neeq2 2988 | . . . . . . . . . . . . 13 ⊢ (𝑁 = if(𝑁 ∈ ℕ, 𝑁, 1) → ((𝑛 · if(𝑀 ∈ ℤ, 𝑀, 1)) ≠ 𝑁 ↔ (𝑛 · if(𝑀 ∈ ℤ, 𝑀, 1)) ≠ if(𝑁 ∈ ℕ, 𝑁, 1))) | |
| 7 | 5, 6 | imbi12d 344 | . . . . . . . . . . . 12 ⊢ (𝑁 = if(𝑁 ∈ ℕ, 𝑁, 1) → ((𝑁 < if(𝑀 ∈ ℤ, 𝑀, 1) → (𝑛 · if(𝑀 ∈ ℤ, 𝑀, 1)) ≠ 𝑁) ↔ (if(𝑁 ∈ ℕ, 𝑁, 1) < if(𝑀 ∈ ℤ, 𝑀, 1) → (𝑛 · if(𝑀 ∈ ℤ, 𝑀, 1)) ≠ if(𝑁 ∈ ℕ, 𝑁, 1)))) |
| 8 | oveq1 7360 | . . . . . . . . . . . . . 14 ⊢ (𝑛 = if(𝑛 ∈ ℤ, 𝑛, 1) → (𝑛 · if(𝑀 ∈ ℤ, 𝑀, 1)) = (if(𝑛 ∈ ℤ, 𝑛, 1) · if(𝑀 ∈ ℤ, 𝑀, 1))) | |
| 9 | 8 | neeq1d 2984 | . . . . . . . . . . . . 13 ⊢ (𝑛 = if(𝑛 ∈ ℤ, 𝑛, 1) → ((𝑛 · if(𝑀 ∈ ℤ, 𝑀, 1)) ≠ if(𝑁 ∈ ℕ, 𝑁, 1) ↔ (if(𝑛 ∈ ℤ, 𝑛, 1) · if(𝑀 ∈ ℤ, 𝑀, 1)) ≠ if(𝑁 ∈ ℕ, 𝑁, 1))) |
| 10 | 9 | imbi2d 340 | . . . . . . . . . . . 12 ⊢ (𝑛 = if(𝑛 ∈ ℤ, 𝑛, 1) → ((if(𝑁 ∈ ℕ, 𝑁, 1) < if(𝑀 ∈ ℤ, 𝑀, 1) → (𝑛 · if(𝑀 ∈ ℤ, 𝑀, 1)) ≠ if(𝑁 ∈ ℕ, 𝑁, 1)) ↔ (if(𝑁 ∈ ℕ, 𝑁, 1) < if(𝑀 ∈ ℤ, 𝑀, 1) → (if(𝑛 ∈ ℤ, 𝑛, 1) · if(𝑀 ∈ ℤ, 𝑀, 1)) ≠ if(𝑁 ∈ ℕ, 𝑁, 1)))) |
| 11 | 1z 12523 | . . . . . . . . . . . . . 14 ⊢ 1 ∈ ℤ | |
| 12 | 11 | elimel 4548 | . . . . . . . . . . . . 13 ⊢ if(𝑀 ∈ ℤ, 𝑀, 1) ∈ ℤ |
| 13 | 1nn 12157 | . . . . . . . . . . . . . 14 ⊢ 1 ∈ ℕ | |
| 14 | 13 | elimel 4548 | . . . . . . . . . . . . 13 ⊢ if(𝑁 ∈ ℕ, 𝑁, 1) ∈ ℕ |
| 15 | 11 | elimel 4548 | . . . . . . . . . . . . 13 ⊢ if(𝑛 ∈ ℤ, 𝑛, 1) ∈ ℤ |
| 16 | 12, 14, 15 | dvdslelem 16238 | . . . . . . . . . . . 12 ⊢ (if(𝑁 ∈ ℕ, 𝑁, 1) < if(𝑀 ∈ ℤ, 𝑀, 1) → (if(𝑛 ∈ ℤ, 𝑛, 1) · if(𝑀 ∈ ℤ, 𝑀, 1)) ≠ if(𝑁 ∈ ℕ, 𝑁, 1)) |
| 17 | 4, 7, 10, 16 | dedth3h 4539 | . . . . . . . . . . 11 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℕ ∧ 𝑛 ∈ ℤ) → (𝑁 < 𝑀 → (𝑛 · 𝑀) ≠ 𝑁)) |
| 18 | 17 | 3expia 1121 | . . . . . . . . . 10 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℕ) → (𝑛 ∈ ℤ → (𝑁 < 𝑀 → (𝑛 · 𝑀) ≠ 𝑁))) |
| 19 | 18 | com23 86 | . . . . . . . . 9 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℕ) → (𝑁 < 𝑀 → (𝑛 ∈ ℤ → (𝑛 · 𝑀) ≠ 𝑁))) |
| 20 | 19 | 3impia 1117 | . . . . . . . 8 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℕ ∧ 𝑁 < 𝑀) → (𝑛 ∈ ℤ → (𝑛 · 𝑀) ≠ 𝑁)) |
| 21 | 20 | imp 406 | . . . . . . 7 ⊢ (((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℕ ∧ 𝑁 < 𝑀) ∧ 𝑛 ∈ ℤ) → (𝑛 · 𝑀) ≠ 𝑁) |
| 22 | 21 | neneqd 2930 | . . . . . 6 ⊢ (((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℕ ∧ 𝑁 < 𝑀) ∧ 𝑛 ∈ ℤ) → ¬ (𝑛 · 𝑀) = 𝑁) |
| 23 | 22 | nrexdv 3124 | . . . . 5 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℕ ∧ 𝑁 < 𝑀) → ¬ ∃𝑛 ∈ ℤ (𝑛 · 𝑀) = 𝑁) |
| 24 | nnz 12510 | . . . . . . 7 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℤ) | |
| 25 | divides 16183 | . . . . . . 7 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑀 ∥ 𝑁 ↔ ∃𝑛 ∈ ℤ (𝑛 · 𝑀) = 𝑁)) | |
| 26 | 24, 25 | sylan2 593 | . . . . . 6 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℕ) → (𝑀 ∥ 𝑁 ↔ ∃𝑛 ∈ ℤ (𝑛 · 𝑀) = 𝑁)) |
| 27 | 26 | 3adant3 1132 | . . . . 5 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℕ ∧ 𝑁 < 𝑀) → (𝑀 ∥ 𝑁 ↔ ∃𝑛 ∈ ℤ (𝑛 · 𝑀) = 𝑁)) |
| 28 | 23, 27 | mtbird 325 | . . . 4 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℕ ∧ 𝑁 < 𝑀) → ¬ 𝑀 ∥ 𝑁) |
| 29 | 28 | 3expia 1121 | . . 3 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℕ) → (𝑁 < 𝑀 → ¬ 𝑀 ∥ 𝑁)) |
| 30 | 29 | con2d 134 | . 2 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℕ) → (𝑀 ∥ 𝑁 → ¬ 𝑁 < 𝑀)) |
| 31 | zre 12493 | . . 3 ⊢ (𝑀 ∈ ℤ → 𝑀 ∈ ℝ) | |
| 32 | nnre 12153 | . . 3 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℝ) | |
| 33 | lenlt 11212 | . . 3 ⊢ ((𝑀 ∈ ℝ ∧ 𝑁 ∈ ℝ) → (𝑀 ≤ 𝑁 ↔ ¬ 𝑁 < 𝑀)) | |
| 34 | 31, 32, 33 | syl2an 596 | . 2 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℕ) → (𝑀 ≤ 𝑁 ↔ ¬ 𝑁 < 𝑀)) |
| 35 | 30, 34 | sylibrd 259 | 1 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℕ) → (𝑀 ∥ 𝑁 → 𝑀 ≤ 𝑁)) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 206 ∧ wa 395 ∧ w3a 1086 = wceq 1540 ∈ wcel 2109 ≠ wne 2925 ∃wrex 3053 ifcif 4478 class class class wbr 5095 (class class class)co 7353 ℝcr 11027 1c1 11029 · cmul 11033 < clt 11168 ≤ cle 11169 ℕcn 12146 ℤcz 12489 ∥ cdvds 16181 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-sep 5238 ax-nul 5248 ax-pow 5307 ax-pr 5374 ax-un 7675 ax-resscn 11085 ax-1cn 11086 ax-icn 11087 ax-addcl 11088 ax-addrcl 11089 ax-mulcl 11090 ax-mulrcl 11091 ax-mulcom 11092 ax-addass 11093 ax-mulass 11094 ax-distr 11095 ax-i2m1 11096 ax-1ne0 11097 ax-1rid 11098 ax-rnegex 11099 ax-rrecex 11100 ax-cnre 11101 ax-pre-lttri 11102 ax-pre-lttrn 11103 ax-pre-ltadd 11104 ax-pre-mulgt0 11105 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-nel 3030 df-ral 3045 df-rex 3054 df-reu 3346 df-rab 3397 df-v 3440 df-sbc 3745 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-pss 3925 df-nul 4287 df-if 4479 df-pw 4555 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4862 df-iun 4946 df-br 5096 df-opab 5158 df-mpt 5177 df-tr 5203 df-id 5518 df-eprel 5523 df-po 5531 df-so 5532 df-fr 5576 df-we 5578 df-xp 5629 df-rel 5630 df-cnv 5631 df-co 5632 df-dm 5633 df-rn 5634 df-res 5635 df-ima 5636 df-pred 6253 df-ord 6314 df-on 6315 df-lim 6316 df-suc 6317 df-iota 6442 df-fun 6488 df-fn 6489 df-f 6490 df-f1 6491 df-fo 6492 df-f1o 6493 df-fv 6494 df-riota 7310 df-ov 7356 df-oprab 7357 df-mpo 7358 df-om 7807 df-2nd 7932 df-frecs 8221 df-wrecs 8252 df-recs 8301 df-rdg 8339 df-er 8632 df-en 8880 df-dom 8881 df-sdom 8882 df-pnf 11170 df-mnf 11171 df-xr 11172 df-ltxr 11173 df-le 11174 df-sub 11367 df-neg 11368 df-nn 12147 df-n0 12403 df-z 12490 df-dvds 16182 |
| This theorem is referenced by: dvdsleabs 16240 dvdsssfz1 16247 fzm1ndvds 16251 fzo0dvdseq 16252 gcd1 16457 bezoutlem4 16471 dfgcd2 16475 gcdzeq 16481 bezoutr1 16498 lcmgcdlem 16535 qredeq 16586 isprm3 16612 prmdvdsfz 16634 isprm5 16636 maxprmfct 16638 isprm6 16643 prmfac1 16649 ncoprmlnprm 16657 pcpre1 16772 pcidlem 16802 pcprod 16825 pcfac 16829 pockthg 16836 prmreclem1 16846 prmreclem3 16848 prmreclem5 16850 1arith 16857 4sqlem11 16885 prmolelcmf 16978 gexcl2 19486 sylow1lem1 19495 sylow1lem5 19499 gexex 19750 ablfac1eu 19972 ablfaclem3 19986 znidomb 21486 dvdsflsumcom 27114 chtublem 27138 vmasum 27143 logfac2 27144 bposlem6 27216 lgsdir 27259 lgsdilem2 27260 lgsne0 27262 lgsqrlem2 27274 lgsquadlem2 27308 2sqlem8 27353 2sqblem 27358 2sqmod 27363 oddpwdc 34321 nn0prpw 36296 lcmineqlem20 42021 lcmineqlem22 42023 aks4d1p3 42051 aks4d1p6 42054 aks4d1p8d2 42058 aks4d1p8 42060 primrootlekpowne0 42078 aks6d1c2lem4 42100 grpods 42167 unitscyglem2 42169 unitscyglem4 42171 gcdle1d 42303 gcdle2d 42304 nznngen 44289 etransclem41 46257 |
| Copyright terms: Public domain | W3C validator |