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| Mirrors > Home > ILE Home > Th. List > uzss | GIF version | ||
| Description: Subset relationship for two sets of upper integers. (Contributed by NM, 5-Sep-2005.) |
| Ref | Expression |
|---|---|
| uzss | ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (ℤ≥‘𝑁) ⊆ (ℤ≥‘𝑀)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eluzle 9613 | . . . . . 6 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → 𝑀 ≤ 𝑁) | |
| 2 | 1 | adantr 276 | . . . . 5 ⊢ ((𝑁 ∈ (ℤ≥‘𝑀) ∧ 𝑘 ∈ ℤ) → 𝑀 ≤ 𝑁) |
| 3 | eluzel2 9606 | . . . . . . 7 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → 𝑀 ∈ ℤ) | |
| 4 | eluzelz 9610 | . . . . . . 7 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → 𝑁 ∈ ℤ) | |
| 5 | 3, 4 | jca 306 | . . . . . 6 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ)) |
| 6 | zletr 9375 | . . . . . . 7 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝑘 ∈ ℤ) → ((𝑀 ≤ 𝑁 ∧ 𝑁 ≤ 𝑘) → 𝑀 ≤ 𝑘)) | |
| 7 | 6 | 3expa 1205 | . . . . . 6 ⊢ (((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) ∧ 𝑘 ∈ ℤ) → ((𝑀 ≤ 𝑁 ∧ 𝑁 ≤ 𝑘) → 𝑀 ≤ 𝑘)) |
| 8 | 5, 7 | sylan 283 | . . . . 5 ⊢ ((𝑁 ∈ (ℤ≥‘𝑀) ∧ 𝑘 ∈ ℤ) → ((𝑀 ≤ 𝑁 ∧ 𝑁 ≤ 𝑘) → 𝑀 ≤ 𝑘)) |
| 9 | 2, 8 | mpand 429 | . . . 4 ⊢ ((𝑁 ∈ (ℤ≥‘𝑀) ∧ 𝑘 ∈ ℤ) → (𝑁 ≤ 𝑘 → 𝑀 ≤ 𝑘)) |
| 10 | 9 | imdistanda 448 | . . 3 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → ((𝑘 ∈ ℤ ∧ 𝑁 ≤ 𝑘) → (𝑘 ∈ ℤ ∧ 𝑀 ≤ 𝑘))) |
| 11 | eluz1 9605 | . . . 4 ⊢ (𝑁 ∈ ℤ → (𝑘 ∈ (ℤ≥‘𝑁) ↔ (𝑘 ∈ ℤ ∧ 𝑁 ≤ 𝑘))) | |
| 12 | 4, 11 | syl 14 | . . 3 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (𝑘 ∈ (ℤ≥‘𝑁) ↔ (𝑘 ∈ ℤ ∧ 𝑁 ≤ 𝑘))) |
| 13 | eluz1 9605 | . . . 4 ⊢ (𝑀 ∈ ℤ → (𝑘 ∈ (ℤ≥‘𝑀) ↔ (𝑘 ∈ ℤ ∧ 𝑀 ≤ 𝑘))) | |
| 14 | 3, 13 | syl 14 | . . 3 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (𝑘 ∈ (ℤ≥‘𝑀) ↔ (𝑘 ∈ ℤ ∧ 𝑀 ≤ 𝑘))) |
| 15 | 10, 12, 14 | 3imtr4d 203 | . 2 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (𝑘 ∈ (ℤ≥‘𝑁) → 𝑘 ∈ (ℤ≥‘𝑀))) |
| 16 | 15 | ssrdv 3189 | 1 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (ℤ≥‘𝑁) ⊆ (ℤ≥‘𝑀)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ↔ wb 105 ∈ wcel 2167 ⊆ wss 3157 class class class wbr 4033 ‘cfv 5258 ≤ cle 8062 ℤcz 9326 ℤ≥cuz 9601 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 615 ax-in2 616 ax-io 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-13 2169 ax-14 2170 ax-ext 2178 ax-sep 4151 ax-pow 4207 ax-pr 4242 ax-un 4468 ax-setind 4573 ax-cnex 7970 ax-resscn 7971 ax-pre-ltwlin 7992 |
| This theorem depends on definitions: df-bi 117 df-3or 981 df-3an 982 df-tru 1367 df-fal 1370 df-nf 1475 df-sb 1777 df-eu 2048 df-mo 2049 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ne 2368 df-nel 2463 df-ral 2480 df-rex 2481 df-rab 2484 df-v 2765 df-sbc 2990 df-dif 3159 df-un 3161 df-in 3163 df-ss 3170 df-pw 3607 df-sn 3628 df-pr 3629 df-op 3631 df-uni 3840 df-br 4034 df-opab 4095 df-mpt 4096 df-id 4328 df-xp 4669 df-rel 4670 df-cnv 4671 df-co 4672 df-dm 4673 df-rn 4674 df-res 4675 df-ima 4676 df-iota 5219 df-fun 5260 df-fn 5261 df-f 5262 df-fv 5266 df-ov 5925 df-pnf 8063 df-mnf 8064 df-xr 8065 df-ltxr 8066 df-le 8067 df-neg 8200 df-z 9327 df-uz 9602 |
| This theorem is referenced by: uzin 9634 uznnssnn 9651 fzopth 10136 4fvwrd4 10215 fzouzsplit 10255 seq3feq2 10568 seq3split 10580 cau3lem 11279 isumsplit 11656 isumrpcl 11659 clim2prod 11704 isprm3 12286 pcfac 12519 plycoeid3 14993 |
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