Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > rpnnen2lem4 | Structured version Visualization version GIF version |
Description: Lemma for rpnnen2 15632. (Contributed by Mario Carneiro, 13-May-2013.) (Revised by Mario Carneiro, 31-Aug-2014.) |
Ref | Expression |
---|---|
rpnnen2.1 | ⊢ 𝐹 = (𝑥 ∈ 𝒫 ℕ ↦ (𝑛 ∈ ℕ ↦ if(𝑛 ∈ 𝑥, ((1 / 3)↑𝑛), 0))) |
Ref | Expression |
---|---|
rpnnen2lem4 | ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → (0 ≤ ((𝐹‘𝐴)‘𝑘) ∧ ((𝐹‘𝐴)‘𝑘) ≤ ((𝐹‘𝐵)‘𝑘))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nnnn0 11946 | . . . . . 6 ⊢ (𝑘 ∈ ℕ → 𝑘 ∈ ℕ0) | |
2 | 0re 10686 | . . . . . . 7 ⊢ 0 ∈ ℝ | |
3 | 1re 10684 | . . . . . . . 8 ⊢ 1 ∈ ℝ | |
4 | 3nn 11758 | . . . . . . . 8 ⊢ 3 ∈ ℕ | |
5 | nndivre 11720 | . . . . . . . 8 ⊢ ((1 ∈ ℝ ∧ 3 ∈ ℕ) → (1 / 3) ∈ ℝ) | |
6 | 3, 4, 5 | mp2an 691 | . . . . . . 7 ⊢ (1 / 3) ∈ ℝ |
7 | 3re 11759 | . . . . . . . 8 ⊢ 3 ∈ ℝ | |
8 | 3pos 11784 | . . . . . . . 8 ⊢ 0 < 3 | |
9 | 7, 8 | recgt0ii 11589 | . . . . . . 7 ⊢ 0 < (1 / 3) |
10 | 2, 6, 9 | ltleii 10806 | . . . . . 6 ⊢ 0 ≤ (1 / 3) |
11 | expge0 13520 | . . . . . . 7 ⊢ (((1 / 3) ∈ ℝ ∧ 𝑘 ∈ ℕ0 ∧ 0 ≤ (1 / 3)) → 0 ≤ ((1 / 3)↑𝑘)) | |
12 | 6, 11 | mp3an1 1445 | . . . . . 6 ⊢ ((𝑘 ∈ ℕ0 ∧ 0 ≤ (1 / 3)) → 0 ≤ ((1 / 3)↑𝑘)) |
13 | 1, 10, 12 | sylancl 589 | . . . . 5 ⊢ (𝑘 ∈ ℕ → 0 ≤ ((1 / 3)↑𝑘)) |
14 | 13 | 3ad2ant3 1132 | . . . 4 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → 0 ≤ ((1 / 3)↑𝑘)) |
15 | 0le0 11780 | . . . 4 ⊢ 0 ≤ 0 | |
16 | breq2 5039 | . . . . 5 ⊢ (((1 / 3)↑𝑘) = if(𝑘 ∈ 𝐴, ((1 / 3)↑𝑘), 0) → (0 ≤ ((1 / 3)↑𝑘) ↔ 0 ≤ if(𝑘 ∈ 𝐴, ((1 / 3)↑𝑘), 0))) | |
17 | breq2 5039 | . . . . 5 ⊢ (0 = if(𝑘 ∈ 𝐴, ((1 / 3)↑𝑘), 0) → (0 ≤ 0 ↔ 0 ≤ if(𝑘 ∈ 𝐴, ((1 / 3)↑𝑘), 0))) | |
18 | 16, 17 | ifboth 4462 | . . . 4 ⊢ ((0 ≤ ((1 / 3)↑𝑘) ∧ 0 ≤ 0) → 0 ≤ if(𝑘 ∈ 𝐴, ((1 / 3)↑𝑘), 0)) |
19 | 14, 15, 18 | sylancl 589 | . . 3 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → 0 ≤ if(𝑘 ∈ 𝐴, ((1 / 3)↑𝑘), 0)) |
20 | sstr 3902 | . . . 4 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ) → 𝐴 ⊆ ℕ) | |
21 | rpnnen2.1 | . . . . 5 ⊢ 𝐹 = (𝑥 ∈ 𝒫 ℕ ↦ (𝑛 ∈ ℕ ↦ if(𝑛 ∈ 𝑥, ((1 / 3)↑𝑛), 0))) | |
22 | 21 | rpnnen2lem1 15620 | . . . 4 ⊢ ((𝐴 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → ((𝐹‘𝐴)‘𝑘) = if(𝑘 ∈ 𝐴, ((1 / 3)↑𝑘), 0)) |
23 | 20, 22 | stoic3 1778 | . . 3 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → ((𝐹‘𝐴)‘𝑘) = if(𝑘 ∈ 𝐴, ((1 / 3)↑𝑘), 0)) |
24 | 19, 23 | breqtrrd 5063 | . 2 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → 0 ≤ ((𝐹‘𝐴)‘𝑘)) |
25 | reexpcl 13501 | . . . . . 6 ⊢ (((1 / 3) ∈ ℝ ∧ 𝑘 ∈ ℕ0) → ((1 / 3)↑𝑘) ∈ ℝ) | |
26 | 6, 1, 25 | sylancr 590 | . . . . 5 ⊢ (𝑘 ∈ ℕ → ((1 / 3)↑𝑘) ∈ ℝ) |
27 | 26 | 3ad2ant3 1132 | . . . 4 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → ((1 / 3)↑𝑘) ∈ ℝ) |
28 | 0red 10687 | . . . 4 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → 0 ∈ ℝ) | |
29 | simp1 1133 | . . . . 5 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → 𝐴 ⊆ 𝐵) | |
30 | 29 | sseld 3893 | . . . 4 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → (𝑘 ∈ 𝐴 → 𝑘 ∈ 𝐵)) |
31 | ifle 12636 | . . . 4 ⊢ (((((1 / 3)↑𝑘) ∈ ℝ ∧ 0 ∈ ℝ ∧ 0 ≤ ((1 / 3)↑𝑘)) ∧ (𝑘 ∈ 𝐴 → 𝑘 ∈ 𝐵)) → if(𝑘 ∈ 𝐴, ((1 / 3)↑𝑘), 0) ≤ if(𝑘 ∈ 𝐵, ((1 / 3)↑𝑘), 0)) | |
32 | 27, 28, 14, 30, 31 | syl31anc 1370 | . . 3 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → if(𝑘 ∈ 𝐴, ((1 / 3)↑𝑘), 0) ≤ if(𝑘 ∈ 𝐵, ((1 / 3)↑𝑘), 0)) |
33 | 21 | rpnnen2lem1 15620 | . . . 4 ⊢ ((𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → ((𝐹‘𝐵)‘𝑘) = if(𝑘 ∈ 𝐵, ((1 / 3)↑𝑘), 0)) |
34 | 33 | 3adant1 1127 | . . 3 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → ((𝐹‘𝐵)‘𝑘) = if(𝑘 ∈ 𝐵, ((1 / 3)↑𝑘), 0)) |
35 | 32, 23, 34 | 3brtr4d 5067 | . 2 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → ((𝐹‘𝐴)‘𝑘) ≤ ((𝐹‘𝐵)‘𝑘)) |
36 | 24, 35 | jca 515 | 1 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → (0 ≤ ((𝐹‘𝐴)‘𝑘) ∧ ((𝐹‘𝐴)‘𝑘) ≤ ((𝐹‘𝐵)‘𝑘))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 ∧ w3a 1084 = wceq 1538 ∈ wcel 2111 ⊆ wss 3860 ifcif 4423 𝒫 cpw 4497 class class class wbr 5035 ↦ cmpt 5115 ‘cfv 6339 (class class class)co 7155 ℝcr 10579 0cc0 10580 1c1 10581 ≤ cle 10719 / cdiv 11340 ℕcn 11679 3c3 11735 ℕ0cn0 11939 ↑cexp 13484 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2729 ax-rep 5159 ax-sep 5172 ax-nul 5179 ax-pow 5237 ax-pr 5301 ax-un 7464 ax-cnex 10636 ax-resscn 10637 ax-1cn 10638 ax-icn 10639 ax-addcl 10640 ax-addrcl 10641 ax-mulcl 10642 ax-mulrcl 10643 ax-mulcom 10644 ax-addass 10645 ax-mulass 10646 ax-distr 10647 ax-i2m1 10648 ax-1ne0 10649 ax-1rid 10650 ax-rnegex 10651 ax-rrecex 10652 ax-cnre 10653 ax-pre-lttri 10654 ax-pre-lttrn 10655 ax-pre-ltadd 10656 ax-pre-mulgt0 10657 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3or 1085 df-3an 1086 df-tru 1541 df-fal 1551 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2557 df-eu 2588 df-clab 2736 df-cleq 2750 df-clel 2830 df-nfc 2901 df-ne 2952 df-nel 3056 df-ral 3075 df-rex 3076 df-reu 3077 df-rmo 3078 df-rab 3079 df-v 3411 df-sbc 3699 df-csb 3808 df-dif 3863 df-un 3865 df-in 3867 df-ss 3877 df-pss 3879 df-nul 4228 df-if 4424 df-pw 4499 df-sn 4526 df-pr 4528 df-tp 4530 df-op 4532 df-uni 4802 df-iun 4888 df-br 5036 df-opab 5098 df-mpt 5116 df-tr 5142 df-id 5433 df-eprel 5438 df-po 5446 df-so 5447 df-fr 5486 df-we 5488 df-xp 5533 df-rel 5534 df-cnv 5535 df-co 5536 df-dm 5537 df-rn 5538 df-res 5539 df-ima 5540 df-pred 6130 df-ord 6176 df-on 6177 df-lim 6178 df-suc 6179 df-iota 6298 df-fun 6341 df-fn 6342 df-f 6343 df-f1 6344 df-fo 6345 df-f1o 6346 df-fv 6347 df-riota 7113 df-ov 7158 df-oprab 7159 df-mpo 7160 df-om 7585 df-2nd 7699 df-wrecs 7962 df-recs 8023 df-rdg 8061 df-er 8304 df-en 8533 df-dom 8534 df-sdom 8535 df-pnf 10720 df-mnf 10721 df-xr 10722 df-ltxr 10723 df-le 10724 df-sub 10915 df-neg 10916 df-div 11341 df-nn 11680 df-2 11742 df-3 11743 df-n0 11940 df-z 12026 df-uz 12288 df-seq 13424 df-exp 13485 |
This theorem is referenced by: rpnnen2lem5 15624 rpnnen2lem7 15626 rpnnen2lem12 15631 |
Copyright terms: Public domain | W3C validator |