Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > elfzom1elp1fzo | GIF version |
Description: Membership of an integer incremented by one in a half-open range of nonnegative integers. (Contributed by Alexander van der Vekens, 24-Jun-2018.) (Proof shortened by AV, 5-Jan-2020.) |
Ref | Expression |
---|---|
elfzom1elp1fzo | ⊢ ((𝑁 ∈ ℤ ∧ 𝐼 ∈ (0..^(𝑁 − 1))) → (𝐼 + 1) ∈ (0..^𝑁)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elfzofz 10118 | . . . . . . 7 ⊢ (𝐼 ∈ (0..^(𝑁 − 1)) → 𝐼 ∈ (0...(𝑁 − 1))) | |
2 | elfzuz2 9985 | . . . . . . 7 ⊢ (𝐼 ∈ (0...(𝑁 − 1)) → (𝑁 − 1) ∈ (ℤ≥‘0)) | |
3 | elnn0uz 9524 | . . . . . . . 8 ⊢ ((𝑁 − 1) ∈ ℕ0 ↔ (𝑁 − 1) ∈ (ℤ≥‘0)) | |
4 | zcn 9217 | . . . . . . . . . . 11 ⊢ (𝑁 ∈ ℤ → 𝑁 ∈ ℂ) | |
5 | 4 | anim1i 338 | . . . . . . . . . 10 ⊢ ((𝑁 ∈ ℤ ∧ (𝑁 − 1) ∈ ℕ0) → (𝑁 ∈ ℂ ∧ (𝑁 − 1) ∈ ℕ0)) |
6 | elnnnn0 9178 | . . . . . . . . . 10 ⊢ (𝑁 ∈ ℕ ↔ (𝑁 ∈ ℂ ∧ (𝑁 − 1) ∈ ℕ0)) | |
7 | 5, 6 | sylibr 133 | . . . . . . . . 9 ⊢ ((𝑁 ∈ ℤ ∧ (𝑁 − 1) ∈ ℕ0) → 𝑁 ∈ ℕ) |
8 | 7 | expcom 115 | . . . . . . . 8 ⊢ ((𝑁 − 1) ∈ ℕ0 → (𝑁 ∈ ℤ → 𝑁 ∈ ℕ)) |
9 | 3, 8 | sylbir 134 | . . . . . . 7 ⊢ ((𝑁 − 1) ∈ (ℤ≥‘0) → (𝑁 ∈ ℤ → 𝑁 ∈ ℕ)) |
10 | 1, 2, 9 | 3syl 17 | . . . . . 6 ⊢ (𝐼 ∈ (0..^(𝑁 − 1)) → (𝑁 ∈ ℤ → 𝑁 ∈ ℕ)) |
11 | 10 | impcom 124 | . . . . 5 ⊢ ((𝑁 ∈ ℤ ∧ 𝐼 ∈ (0..^(𝑁 − 1))) → 𝑁 ∈ ℕ) |
12 | 1nn0 9151 | . . . . . . 7 ⊢ 1 ∈ ℕ0 | |
13 | 12 | a1i 9 | . . . . . 6 ⊢ (𝑁 ∈ ℕ → 1 ∈ ℕ0) |
14 | nnnn0 9142 | . . . . . 6 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℕ0) | |
15 | nnge1 8901 | . . . . . 6 ⊢ (𝑁 ∈ ℕ → 1 ≤ 𝑁) | |
16 | 13, 14, 15 | 3jca 1172 | . . . . 5 ⊢ (𝑁 ∈ ℕ → (1 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0 ∧ 1 ≤ 𝑁)) |
17 | 11, 16 | syl 14 | . . . 4 ⊢ ((𝑁 ∈ ℤ ∧ 𝐼 ∈ (0..^(𝑁 − 1))) → (1 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0 ∧ 1 ≤ 𝑁)) |
18 | elfz2nn0 10068 | . . . 4 ⊢ (1 ∈ (0...𝑁) ↔ (1 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0 ∧ 1 ≤ 𝑁)) | |
19 | 17, 18 | sylibr 133 | . . 3 ⊢ ((𝑁 ∈ ℤ ∧ 𝐼 ∈ (0..^(𝑁 − 1))) → 1 ∈ (0...𝑁)) |
20 | fzossrbm1 10129 | . . . . . . 7 ⊢ (𝑁 ∈ ℤ → (0..^(𝑁 − 1)) ⊆ (0..^𝑁)) | |
21 | 20 | adantr 274 | . . . . . 6 ⊢ ((𝑁 ∈ ℤ ∧ 𝐼 ∈ (0..^(𝑁 − 1))) → (0..^(𝑁 − 1)) ⊆ (0..^𝑁)) |
22 | fzossfz 10121 | . . . . . 6 ⊢ (0..^𝑁) ⊆ (0...𝑁) | |
23 | 21, 22 | sstrdi 3159 | . . . . 5 ⊢ ((𝑁 ∈ ℤ ∧ 𝐼 ∈ (0..^(𝑁 − 1))) → (0..^(𝑁 − 1)) ⊆ (0...𝑁)) |
24 | simpr 109 | . . . . 5 ⊢ ((𝑁 ∈ ℤ ∧ 𝐼 ∈ (0..^(𝑁 − 1))) → 𝐼 ∈ (0..^(𝑁 − 1))) | |
25 | 23, 24 | jca 304 | . . . 4 ⊢ ((𝑁 ∈ ℤ ∧ 𝐼 ∈ (0..^(𝑁 − 1))) → ((0..^(𝑁 − 1)) ⊆ (0...𝑁) ∧ 𝐼 ∈ (0..^(𝑁 − 1)))) |
26 | ssel2 3142 | . . . 4 ⊢ (((0..^(𝑁 − 1)) ⊆ (0...𝑁) ∧ 𝐼 ∈ (0..^(𝑁 − 1))) → 𝐼 ∈ (0...𝑁)) | |
27 | elfzubelfz 9992 | . . . 4 ⊢ (𝐼 ∈ (0...𝑁) → 𝑁 ∈ (0...𝑁)) | |
28 | 25, 26, 27 | 3syl 17 | . . 3 ⊢ ((𝑁 ∈ ℤ ∧ 𝐼 ∈ (0..^(𝑁 − 1))) → 𝑁 ∈ (0...𝑁)) |
29 | 19, 28 | jca 304 | . 2 ⊢ ((𝑁 ∈ ℤ ∧ 𝐼 ∈ (0..^(𝑁 − 1))) → (1 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...𝑁))) |
30 | elfzodifsumelfzo 10157 | . 2 ⊢ ((1 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...𝑁)) → (𝐼 ∈ (0..^(𝑁 − 1)) → (𝐼 + 1) ∈ (0..^𝑁))) | |
31 | 29, 24, 30 | sylc 62 | 1 ⊢ ((𝑁 ∈ ℤ ∧ 𝐼 ∈ (0..^(𝑁 − 1))) → (𝐼 + 1) ∈ (0..^𝑁)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 ∧ w3a 973 ∈ wcel 2141 ⊆ wss 3121 class class class wbr 3989 ‘cfv 5198 (class class class)co 5853 ℂcc 7772 0cc0 7774 1c1 7775 + caddc 7777 ≤ cle 7955 − cmin 8090 ℕcn 8878 ℕ0cn0 9135 ℤcz 9212 ℤ≥cuz 9487 ...cfz 9965 ..^cfzo 10098 |
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 609 ax-in2 610 ax-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-13 2143 ax-14 2144 ax-ext 2152 ax-sep 4107 ax-pow 4160 ax-pr 4194 ax-un 4418 ax-setind 4521 ax-cnex 7865 ax-resscn 7866 ax-1cn 7867 ax-1re 7868 ax-icn 7869 ax-addcl 7870 ax-addrcl 7871 ax-mulcl 7872 ax-addcom 7874 ax-addass 7876 ax-distr 7878 ax-i2m1 7879 ax-0lt1 7880 ax-0id 7882 ax-rnegex 7883 ax-cnre 7885 ax-pre-ltirr 7886 ax-pre-ltwlin 7887 ax-pre-lttrn 7888 ax-pre-ltadd 7890 |
This theorem depends on definitions: df-bi 116 df-3or 974 df-3an 975 df-tru 1351 df-fal 1354 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ne 2341 df-nel 2436 df-ral 2453 df-rex 2454 df-reu 2455 df-rab 2457 df-v 2732 df-sbc 2956 df-csb 3050 df-dif 3123 df-un 3125 df-in 3127 df-ss 3134 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-uni 3797 df-int 3832 df-iun 3875 df-br 3990 df-opab 4051 df-mpt 4052 df-id 4278 df-xp 4617 df-rel 4618 df-cnv 4619 df-co 4620 df-dm 4621 df-rn 4622 df-res 4623 df-ima 4624 df-iota 5160 df-fun 5200 df-fn 5201 df-f 5202 df-fv 5206 df-riota 5809 df-ov 5856 df-oprab 5857 df-mpo 5858 df-1st 6119 df-2nd 6120 df-pnf 7956 df-mnf 7957 df-xr 7958 df-ltxr 7959 df-le 7960 df-sub 8092 df-neg 8093 df-inn 8879 df-n0 9136 df-z 9213 df-uz 9488 df-fz 9966 df-fzo 10099 |
This theorem is referenced by: (None) |
Copyright terms: Public domain | W3C validator |