Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > rpnnen2lem4 | Structured version Visualization version GIF version |
Description: Lemma for rpnnen2 15935. (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 12240 | . . . . . 6 ⊢ (𝑘 ∈ ℕ → 𝑘 ∈ ℕ0) | |
2 | 0re 10977 | . . . . . . 7 ⊢ 0 ∈ ℝ | |
3 | 1re 10975 | . . . . . . . 8 ⊢ 1 ∈ ℝ | |
4 | 3nn 12052 | . . . . . . . 8 ⊢ 3 ∈ ℕ | |
5 | nndivre 12014 | . . . . . . . 8 ⊢ ((1 ∈ ℝ ∧ 3 ∈ ℕ) → (1 / 3) ∈ ℝ) | |
6 | 3, 4, 5 | mp2an 689 | . . . . . . 7 ⊢ (1 / 3) ∈ ℝ |
7 | 3re 12053 | . . . . . . . 8 ⊢ 3 ∈ ℝ | |
8 | 3pos 12078 | . . . . . . . 8 ⊢ 0 < 3 | |
9 | 7, 8 | recgt0ii 11881 | . . . . . . 7 ⊢ 0 < (1 / 3) |
10 | 2, 6, 9 | ltleii 11098 | . . . . . 6 ⊢ 0 ≤ (1 / 3) |
11 | expge0 13819 | . . . . . . 7 ⊢ (((1 / 3) ∈ ℝ ∧ 𝑘 ∈ ℕ0 ∧ 0 ≤ (1 / 3)) → 0 ≤ ((1 / 3)↑𝑘)) | |
12 | 6, 11 | mp3an1 1447 | . . . . . 6 ⊢ ((𝑘 ∈ ℕ0 ∧ 0 ≤ (1 / 3)) → 0 ≤ ((1 / 3)↑𝑘)) |
13 | 1, 10, 12 | sylancl 586 | . . . . 5 ⊢ (𝑘 ∈ ℕ → 0 ≤ ((1 / 3)↑𝑘)) |
14 | 13 | 3ad2ant3 1134 | . . . 4 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → 0 ≤ ((1 / 3)↑𝑘)) |
15 | 0le0 12074 | . . . 4 ⊢ 0 ≤ 0 | |
16 | breq2 5078 | . . . . 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 5078 | . . . . 5 ⊢ (0 = if(𝑘 ∈ 𝐴, ((1 / 3)↑𝑘), 0) → (0 ≤ 0 ↔ 0 ≤ if(𝑘 ∈ 𝐴, ((1 / 3)↑𝑘), 0))) | |
18 | 16, 17 | ifboth 4498 | . . . 4 ⊢ ((0 ≤ ((1 / 3)↑𝑘) ∧ 0 ≤ 0) → 0 ≤ if(𝑘 ∈ 𝐴, ((1 / 3)↑𝑘), 0)) |
19 | 14, 15, 18 | sylancl 586 | . . 3 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → 0 ≤ if(𝑘 ∈ 𝐴, ((1 / 3)↑𝑘), 0)) |
20 | sstr 3929 | . . . 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 15923 | . . . 4 ⊢ ((𝐴 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → ((𝐹‘𝐴)‘𝑘) = if(𝑘 ∈ 𝐴, ((1 / 3)↑𝑘), 0)) |
23 | 20, 22 | stoic3 1779 | . . 3 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → ((𝐹‘𝐴)‘𝑘) = if(𝑘 ∈ 𝐴, ((1 / 3)↑𝑘), 0)) |
24 | 19, 23 | breqtrrd 5102 | . 2 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → 0 ≤ ((𝐹‘𝐴)‘𝑘)) |
25 | reexpcl 13799 | . . . . . 6 ⊢ (((1 / 3) ∈ ℝ ∧ 𝑘 ∈ ℕ0) → ((1 / 3)↑𝑘) ∈ ℝ) | |
26 | 6, 1, 25 | sylancr 587 | . . . . 5 ⊢ (𝑘 ∈ ℕ → ((1 / 3)↑𝑘) ∈ ℝ) |
27 | 26 | 3ad2ant3 1134 | . . . 4 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → ((1 / 3)↑𝑘) ∈ ℝ) |
28 | 0red 10978 | . . . 4 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → 0 ∈ ℝ) | |
29 | simp1 1135 | . . . . 5 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → 𝐴 ⊆ 𝐵) | |
30 | 29 | sseld 3920 | . . . 4 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → (𝑘 ∈ 𝐴 → 𝑘 ∈ 𝐵)) |
31 | ifle 12931 | . . . 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 1372 | . . 3 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → if(𝑘 ∈ 𝐴, ((1 / 3)↑𝑘), 0) ≤ if(𝑘 ∈ 𝐵, ((1 / 3)↑𝑘), 0)) |
33 | 21 | rpnnen2lem1 15923 | . . . 4 ⊢ ((𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → ((𝐹‘𝐵)‘𝑘) = if(𝑘 ∈ 𝐵, ((1 / 3)↑𝑘), 0)) |
34 | 33 | 3adant1 1129 | . . 3 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → ((𝐹‘𝐵)‘𝑘) = if(𝑘 ∈ 𝐵, ((1 / 3)↑𝑘), 0)) |
35 | 32, 23, 34 | 3brtr4d 5106 | . 2 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ ℕ ∧ 𝑘 ∈ ℕ) → ((𝐹‘𝐴)‘𝑘) ≤ ((𝐹‘𝐵)‘𝑘)) |
36 | 24, 35 | jca 512 | 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 396 ∧ w3a 1086 = wceq 1539 ∈ wcel 2106 ⊆ wss 3887 ifcif 4459 𝒫 cpw 4533 class class class wbr 5074 ↦ cmpt 5157 ‘cfv 6433 (class class class)co 7275 ℝcr 10870 0cc0 10871 1c1 10872 ≤ cle 11010 / cdiv 11632 ℕcn 11973 3c3 12029 ℕ0cn0 12233 ↑cexp 13782 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-rep 5209 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-rmo 3071 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-om 7713 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-er 8498 df-en 8734 df-dom 8735 df-sdom 8736 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-div 11633 df-nn 11974 df-2 12036 df-3 12037 df-n0 12234 df-z 12320 df-uz 12583 df-seq 13722 df-exp 13783 |
This theorem is referenced by: rpnnen2lem5 15927 rpnnen2lem7 15929 rpnnen2lem12 15934 |
Copyright terms: Public domain | W3C validator |