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Mirrors > Home > ILE Home > Th. List > uznfz | GIF version |
Description: Disjointness of the upper integers and a finite sequence. (Contributed by Mario Carneiro, 24-Aug-2013.) |
Ref | Expression |
---|---|
uznfz | ⊢ (𝐾 ∈ (ℤ≥‘𝑁) → ¬ 𝐾 ∈ (𝑀...(𝑁 − 1))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eluzle 9499 | . 2 ⊢ (𝐾 ∈ (ℤ≥‘𝑁) → 𝑁 ≤ 𝐾) | |
2 | eluzel2 9492 | . . . 4 ⊢ (𝐾 ∈ (ℤ≥‘𝑁) → 𝑁 ∈ ℤ) | |
3 | elfzel1 9980 | . . . . 5 ⊢ (𝐾 ∈ (𝑀...(𝑁 − 1)) → 𝑀 ∈ ℤ) | |
4 | elfzm11 10047 | . . . . . . 7 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (𝑀...(𝑁 − 1)) ↔ (𝐾 ∈ ℤ ∧ 𝑀 ≤ 𝐾 ∧ 𝐾 < 𝑁))) | |
5 | simp3 994 | . . . . . . 7 ⊢ ((𝐾 ∈ ℤ ∧ 𝑀 ≤ 𝐾 ∧ 𝐾 < 𝑁) → 𝐾 < 𝑁) | |
6 | 4, 5 | syl6bi 162 | . . . . . 6 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (𝑀...(𝑁 − 1)) → 𝐾 < 𝑁)) |
7 | 6 | impancom 258 | . . . . 5 ⊢ ((𝑀 ∈ ℤ ∧ 𝐾 ∈ (𝑀...(𝑁 − 1))) → (𝑁 ∈ ℤ → 𝐾 < 𝑁)) |
8 | 3, 7 | mpancom 420 | . . . 4 ⊢ (𝐾 ∈ (𝑀...(𝑁 − 1)) → (𝑁 ∈ ℤ → 𝐾 < 𝑁)) |
9 | 2, 8 | syl5com 29 | . . 3 ⊢ (𝐾 ∈ (ℤ≥‘𝑁) → (𝐾 ∈ (𝑀...(𝑁 − 1)) → 𝐾 < 𝑁)) |
10 | eluzelz 9496 | . . . 4 ⊢ (𝐾 ∈ (ℤ≥‘𝑁) → 𝐾 ∈ ℤ) | |
11 | zltnle 9258 | . . . 4 ⊢ ((𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝐾 < 𝑁 ↔ ¬ 𝑁 ≤ 𝐾)) | |
12 | 10, 2, 11 | syl2anc 409 | . . 3 ⊢ (𝐾 ∈ (ℤ≥‘𝑁) → (𝐾 < 𝑁 ↔ ¬ 𝑁 ≤ 𝐾)) |
13 | 9, 12 | sylibd 148 | . 2 ⊢ (𝐾 ∈ (ℤ≥‘𝑁) → (𝐾 ∈ (𝑀...(𝑁 − 1)) → ¬ 𝑁 ≤ 𝐾)) |
14 | 1, 13 | mt2d 620 | 1 ⊢ (𝐾 ∈ (ℤ≥‘𝑁) → ¬ 𝐾 ∈ (𝑀...(𝑁 − 1))) |
Colors of variables: wff set class |
Syntax hints: ¬ wn 3 → wi 4 ∧ wa 103 ↔ wb 104 ∧ w3a 973 ∈ wcel 2141 class class class wbr 3989 ‘cfv 5198 (class class class)co 5853 1c1 7775 < clt 7954 ≤ cle 7955 − cmin 8090 ℤcz 9212 ℤ≥cuz 9487 ...cfz 9965 |
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-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-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-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 |
This theorem is referenced by: sumrbdclem 11340 prodrbdclem 11534 |
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