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Mirrors > Home > ILE Home > Th. List > ubmelfzo | GIF version |
Description: If an integer in a 1 based finite set of sequential integers is subtracted from the upper bound of this finite set of sequential integers, the result is contained in a half-open range of nonnegative integers with the same upper bound. (Contributed by AV, 18-Mar-2018.) (Revised by AV, 30-Oct-2018.) |
Ref | Expression |
---|---|
ubmelfzo | ⊢ (𝐾 ∈ (1...𝑁) → (𝑁 − 𝐾) ∈ (0..^𝑁)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simp3 989 | . . . 4 ⊢ ((𝐾 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝐾 ≤ 𝑁) → 𝐾 ≤ 𝑁) | |
2 | nnnn0 9121 | . . . . . . 7 ⊢ (𝐾 ∈ ℕ → 𝐾 ∈ ℕ0) | |
3 | nnnn0 9121 | . . . . . . 7 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℕ0) | |
4 | 2, 3 | anim12i 336 | . . . . . 6 ⊢ ((𝐾 ∈ ℕ ∧ 𝑁 ∈ ℕ) → (𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0)) |
5 | 4 | 3adant3 1007 | . . . . 5 ⊢ ((𝐾 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝐾 ≤ 𝑁) → (𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0)) |
6 | nn0sub 9257 | . . . . 5 ⊢ ((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) → (𝐾 ≤ 𝑁 ↔ (𝑁 − 𝐾) ∈ ℕ0)) | |
7 | 5, 6 | syl 14 | . . . 4 ⊢ ((𝐾 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝐾 ≤ 𝑁) → (𝐾 ≤ 𝑁 ↔ (𝑁 − 𝐾) ∈ ℕ0)) |
8 | 1, 7 | mpbid 146 | . . 3 ⊢ ((𝐾 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝐾 ≤ 𝑁) → (𝑁 − 𝐾) ∈ ℕ0) |
9 | simp2 988 | . . 3 ⊢ ((𝐾 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝐾 ≤ 𝑁) → 𝑁 ∈ ℕ) | |
10 | nngt0 8882 | . . . . 5 ⊢ (𝐾 ∈ ℕ → 0 < 𝐾) | |
11 | 10 | 3ad2ant1 1008 | . . . 4 ⊢ ((𝐾 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝐾 ≤ 𝑁) → 0 < 𝐾) |
12 | nnre 8864 | . . . . . . 7 ⊢ (𝐾 ∈ ℕ → 𝐾 ∈ ℝ) | |
13 | nnre 8864 | . . . . . . 7 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℝ) | |
14 | 12, 13 | anim12i 336 | . . . . . 6 ⊢ ((𝐾 ∈ ℕ ∧ 𝑁 ∈ ℕ) → (𝐾 ∈ ℝ ∧ 𝑁 ∈ ℝ)) |
15 | 14 | 3adant3 1007 | . . . . 5 ⊢ ((𝐾 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝐾 ≤ 𝑁) → (𝐾 ∈ ℝ ∧ 𝑁 ∈ ℝ)) |
16 | ltsubpos 8352 | . . . . 5 ⊢ ((𝐾 ∈ ℝ ∧ 𝑁 ∈ ℝ) → (0 < 𝐾 ↔ (𝑁 − 𝐾) < 𝑁)) | |
17 | 15, 16 | syl 14 | . . . 4 ⊢ ((𝐾 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝐾 ≤ 𝑁) → (0 < 𝐾 ↔ (𝑁 − 𝐾) < 𝑁)) |
18 | 11, 17 | mpbid 146 | . . 3 ⊢ ((𝐾 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝐾 ≤ 𝑁) → (𝑁 − 𝐾) < 𝑁) |
19 | 8, 9, 18 | 3jca 1167 | . 2 ⊢ ((𝐾 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝐾 ≤ 𝑁) → ((𝑁 − 𝐾) ∈ ℕ0 ∧ 𝑁 ∈ ℕ ∧ (𝑁 − 𝐾) < 𝑁)) |
20 | elfz1b 10025 | . 2 ⊢ (𝐾 ∈ (1...𝑁) ↔ (𝐾 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝐾 ≤ 𝑁)) | |
21 | elfzo0 10117 | . 2 ⊢ ((𝑁 − 𝐾) ∈ (0..^𝑁) ↔ ((𝑁 − 𝐾) ∈ ℕ0 ∧ 𝑁 ∈ ℕ ∧ (𝑁 − 𝐾) < 𝑁)) | |
22 | 19, 20, 21 | 3imtr4i 200 | 1 ⊢ (𝐾 ∈ (1...𝑁) → (𝑁 − 𝐾) ∈ (0..^𝑁)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 ↔ wb 104 ∧ w3a 968 ∈ wcel 2136 class class class wbr 3982 (class class class)co 5842 ℝcr 7752 0cc0 7753 1c1 7754 < clt 7933 ≤ cle 7934 − cmin 8069 ℕcn 8857 ℕ0cn0 9114 ...cfz 9944 ..^cfzo 10077 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 604 ax-in2 605 ax-io 699 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-13 2138 ax-14 2139 ax-ext 2147 ax-sep 4100 ax-pow 4153 ax-pr 4187 ax-un 4411 ax-setind 4514 ax-cnex 7844 ax-resscn 7845 ax-1cn 7846 ax-1re 7847 ax-icn 7848 ax-addcl 7849 ax-addrcl 7850 ax-mulcl 7851 ax-addcom 7853 ax-addass 7855 ax-distr 7857 ax-i2m1 7858 ax-0lt1 7859 ax-0id 7861 ax-rnegex 7862 ax-cnre 7864 ax-pre-ltirr 7865 ax-pre-ltwlin 7866 ax-pre-lttrn 7867 ax-pre-ltadd 7869 |
This theorem depends on definitions: df-bi 116 df-3or 969 df-3an 970 df-tru 1346 df-fal 1349 df-nf 1449 df-sb 1751 df-eu 2017 df-mo 2018 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ne 2337 df-nel 2432 df-ral 2449 df-rex 2450 df-reu 2451 df-rab 2453 df-v 2728 df-sbc 2952 df-csb 3046 df-dif 3118 df-un 3120 df-in 3122 df-ss 3129 df-pw 3561 df-sn 3582 df-pr 3583 df-op 3585 df-uni 3790 df-int 3825 df-iun 3868 df-br 3983 df-opab 4044 df-mpt 4045 df-id 4271 df-xp 4610 df-rel 4611 df-cnv 4612 df-co 4613 df-dm 4614 df-rn 4615 df-res 4616 df-ima 4617 df-iota 5153 df-fun 5190 df-fn 5191 df-f 5192 df-fv 5196 df-riota 5798 df-ov 5845 df-oprab 5846 df-mpo 5847 df-1st 6108 df-2nd 6109 df-pnf 7935 df-mnf 7936 df-xr 7937 df-ltxr 7938 df-le 7939 df-sub 8071 df-neg 8072 df-inn 8858 df-n0 9115 df-z 9192 df-uz 9467 df-fz 9945 df-fzo 10078 |
This theorem is referenced by: (None) |
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