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| Mirrors > Home > MPE Home > Th. List > fzctr | Structured version Visualization version GIF version | ||
| Description: Lemma for theorems about the central binomial coefficient. (Contributed by Mario Carneiro, 8-Mar-2014.) (Revised by Mario Carneiro, 2-Aug-2014.) |
| Ref | Expression |
|---|---|
| fzctr | ⊢ (𝑁 ∈ ℕ0 → 𝑁 ∈ (0...(2 · 𝑁))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nn0ge0 12540 | . 2 ⊢ (𝑁 ∈ ℕ0 → 0 ≤ 𝑁) | |
| 2 | nn0re 12524 | . . . 4 ⊢ (𝑁 ∈ ℕ0 → 𝑁 ∈ ℝ) | |
| 3 | nn0addge1 12561 | . . . 4 ⊢ ((𝑁 ∈ ℝ ∧ 𝑁 ∈ ℕ0) → 𝑁 ≤ (𝑁 + 𝑁)) | |
| 4 | 2, 3 | mpancom 701 | . . 3 ⊢ (𝑁 ∈ ℕ0 → 𝑁 ≤ (𝑁 + 𝑁)) |
| 5 | nn0cn 12525 | . . . 4 ⊢ (𝑁 ∈ ℕ0 → 𝑁 ∈ ℂ) | |
| 6 | 5 | 2timesd 12498 | . . 3 ⊢ (𝑁 ∈ ℕ0 → (2 · 𝑁) = (𝑁 + 𝑁)) |
| 7 | 4, 6 | breqtrrd 5141 | . 2 ⊢ (𝑁 ∈ ℕ0 → 𝑁 ≤ (2 · 𝑁)) |
| 8 | nn0z 12626 | . . 3 ⊢ (𝑁 ∈ ℕ0 → 𝑁 ∈ ℤ) | |
| 9 | 0zd 12614 | . . 3 ⊢ (𝑁 ∈ ℕ0 → 0 ∈ ℤ) | |
| 10 | 2z 12637 | . . . 4 ⊢ 2 ∈ ℤ | |
| 11 | zmulcl 12654 | . . . 4 ⊢ ((2 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (2 · 𝑁) ∈ ℤ) | |
| 12 | 10, 8, 11 | sylancr 599 | . . 3 ⊢ (𝑁 ∈ ℕ0 → (2 · 𝑁) ∈ ℤ) |
| 13 | elfz 13552 | . . 3 ⊢ ((𝑁 ∈ ℤ ∧ 0 ∈ ℤ ∧ (2 · 𝑁) ∈ ℤ) → (𝑁 ∈ (0...(2 · 𝑁)) ↔ (0 ≤ 𝑁 ∧ 𝑁 ≤ (2 · 𝑁)))) | |
| 14 | 8, 9, 12, 13 | syl3anc 1398 | . 2 ⊢ (𝑁 ∈ ℕ0 → (𝑁 ∈ (0...(2 · 𝑁)) ↔ (0 ≤ 𝑁 ∧ 𝑁 ≤ (2 · 𝑁)))) |
| 15 | 1, 7, 14 | mpbir2and 726 | 1 ⊢ (𝑁 ∈ ℕ0 → 𝑁 ∈ (0...(2 · 𝑁))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 ∈ wcel 2146 class class class wbr 5111 (class class class)co 7416 ℝcr 11110 0cc0 11111 + caddc 11114 · cmul 11116 ≤ cle 11255 2c2 12306 ℕ0cn0 12515 ℤcz 12602 ...cfz 13546 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7738 ax-cnex 11167 ax-resscn 11168 ax-1cn 11169 ax-icn 11170 ax-addcl 11171 ax-addrcl 11172 ax-mulcl 11173 ax-mulrcl 11174 ax-mulcom 11175 ax-addass 11176 ax-mulass 11177 ax-distr 11178 ax-i2m1 11179 ax-1ne0 11180 ax-1rid 11181 ax-rnegex 11182 ax-rrecex 11183 ax-cnre 11184 ax-pre-lttri 11185 ax-pre-lttrn 11186 ax-pre-ltadd 11187 ax-pre-mulgt0 11188 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3067 df-ral 3082 df-rex 3092 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7373 df-ov 7419 df-oprab 7420 df-mpo 7421 df-om 7865 df-2nd 7989 df-frecs 8280 df-wrecs 8311 df-recs 8360 df-rdg 8399 df-er 8696 df-en 8946 df-dom 8947 df-sdom 8948 df-pnf 11256 df-mnf 11257 df-xr 11258 df-ltxr 11259 df-le 11260 df-sub 11454 df-neg 11455 df-nn 12245 df-2 12314 df-n0 12516 df-z 12603 df-fz 13547 |
| This theorem is used by: bcctr 27468 pcbcctr 27469 bcp1ctr 27472 bposlem1 27477 bposlem3 27479 bposlem5 27481 bposlem6 27482 chebbnd1lem1 27662 |
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