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| Mirrors > Home > MPE Home > Th. List > mbfi1fseqlem1 | Structured version Visualization version GIF version | ||
| Description: Lemma for mbfi1fseq 25949. (Contributed by Mario Carneiro, 16-Aug-2014.) |
| Ref | Expression |
|---|---|
| mbfi1fseq.1 | ⊢ (𝜑 → 𝐹 ∈ MblFn) |
| mbfi1fseq.2 | ⊢ (𝜑 → 𝐹:ℝ⟶(0[,)+∞)) |
| mbfi1fseq.3 | ⊢ 𝐽 = (𝑚 ∈ ℕ, 𝑦 ∈ ℝ ↦ ((⌊‘((𝐹‘𝑦) · (2↑𝑚))) / (2↑𝑚))) |
| Ref | Expression |
|---|---|
| mbfi1fseqlem1 | ⊢ (𝜑 → 𝐽:(ℕ × ℝ)⟶(0[,)+∞)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mbfi1fseq.2 | . . . . . . . . . 10 ⊢ (𝜑 → 𝐹:ℝ⟶(0[,)+∞)) | |
| 2 | simpr 490 | . . . . . . . . . 10 ⊢ ((𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ) → 𝑦 ∈ ℝ) | |
| 3 | ffvelcdm 7074 | . . . . . . . . . 10 ⊢ ((𝐹:ℝ⟶(0[,)+∞) ∧ 𝑦 ∈ ℝ) → (𝐹‘𝑦) ∈ (0[,)+∞)) | |
| 4 | 1, 2, 3 | syl2an 608 | . . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → (𝐹‘𝑦) ∈ (0[,)+∞)) |
| 5 | elrege0 13507 | . . . . . . . . 9 ⊢ ((𝐹‘𝑦) ∈ (0[,)+∞) ↔ ((𝐹‘𝑦) ∈ ℝ ∧ 0 ≤ (𝐹‘𝑦))) | |
| 6 | 4, 5 | sylib 221 | . . . . . . . 8 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → ((𝐹‘𝑦) ∈ ℝ ∧ 0 ≤ (𝐹‘𝑦))) |
| 7 | 6 | simpld 500 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → (𝐹‘𝑦) ∈ ℝ) |
| 8 | 2nn 12338 | . . . . . . . . . 10 ⊢ 2 ∈ ℕ | |
| 9 | nnnn0 12535 | . . . . . . . . . 10 ⊢ (𝑚 ∈ ℕ → 𝑚 ∈ ℕ0) | |
| 10 | nnexpcl 14138 | . . . . . . . . . 10 ⊢ ((2 ∈ ℕ ∧ 𝑚 ∈ ℕ0) → (2↑𝑚) ∈ ℕ) | |
| 11 | 8, 9, 10 | sylancr 599 | . . . . . . . . 9 ⊢ (𝑚 ∈ ℕ → (2↑𝑚) ∈ ℕ) |
| 12 | 11 | ad2antrl 741 | . . . . . . . 8 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → (2↑𝑚) ∈ ℕ) |
| 13 | 12 | nnred 12272 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → (2↑𝑚) ∈ ℝ) |
| 14 | 7, 13 | remulcld 11263 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → ((𝐹‘𝑦) · (2↑𝑚)) ∈ ℝ) |
| 15 | reflcl 13857 | . . . . . 6 ⊢ (((𝐹‘𝑦) · (2↑𝑚)) ∈ ℝ → (⌊‘((𝐹‘𝑦) · (2↑𝑚))) ∈ ℝ) | |
| 16 | 14, 15 | syl 18 | . . . . 5 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → (⌊‘((𝐹‘𝑦) · (2↑𝑚))) ∈ ℝ) |
| 17 | 16, 12 | nndivred 12314 | . . . 4 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → ((⌊‘((𝐹‘𝑦) · (2↑𝑚))) / (2↑𝑚)) ∈ ℝ) |
| 18 | 12 | nnnn0d 12589 | . . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → (2↑𝑚) ∈ ℕ0) |
| 19 | 18 | nn0ge0d 12592 | . . . . . . . 8 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → 0 ≤ (2↑𝑚)) |
| 20 | mulge0 11756 | . . . . . . . 8 ⊢ ((((𝐹‘𝑦) ∈ ℝ ∧ 0 ≤ (𝐹‘𝑦)) ∧ ((2↑𝑚) ∈ ℝ ∧ 0 ≤ (2↑𝑚))) → 0 ≤ ((𝐹‘𝑦) · (2↑𝑚))) | |
| 21 | 6, 13, 19, 20 | syl12anc 850 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → 0 ≤ ((𝐹‘𝑦) · (2↑𝑚))) |
| 22 | flge0nn0 13881 | . . . . . . 7 ⊢ ((((𝐹‘𝑦) · (2↑𝑚)) ∈ ℝ ∧ 0 ≤ ((𝐹‘𝑦) · (2↑𝑚))) → (⌊‘((𝐹‘𝑦) · (2↑𝑚))) ∈ ℕ0) | |
| 23 | 14, 21, 22 | syl2anc 596 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → (⌊‘((𝐹‘𝑦) · (2↑𝑚))) ∈ ℕ0) |
| 24 | 23 | nn0ge0d 12592 | . . . . 5 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → 0 ≤ (⌊‘((𝐹‘𝑦) · (2↑𝑚)))) |
| 25 | 12 | nngt0d 12309 | . . . . 5 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → 0 < (2↑𝑚)) |
| 26 | divge0 12108 | . . . . 5 ⊢ ((((⌊‘((𝐹‘𝑦) · (2↑𝑚))) ∈ ℝ ∧ 0 ≤ (⌊‘((𝐹‘𝑦) · (2↑𝑚)))) ∧ ((2↑𝑚) ∈ ℝ ∧ 0 < (2↑𝑚))) → 0 ≤ ((⌊‘((𝐹‘𝑦) · (2↑𝑚))) / (2↑𝑚))) | |
| 27 | 16, 24, 13, 25, 26 | syl22anc 852 | . . . 4 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → 0 ≤ ((⌊‘((𝐹‘𝑦) · (2↑𝑚))) / (2↑𝑚))) |
| 28 | elrege0 13507 | . . . 4 ⊢ (((⌊‘((𝐹‘𝑦) · (2↑𝑚))) / (2↑𝑚)) ∈ (0[,)+∞) ↔ (((⌊‘((𝐹‘𝑦) · (2↑𝑚))) / (2↑𝑚)) ∈ ℝ ∧ 0 ≤ ((⌊‘((𝐹‘𝑦) · (2↑𝑚))) / (2↑𝑚)))) | |
| 29 | 17, 27, 28 | sylanbrc 595 | . . 3 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → ((⌊‘((𝐹‘𝑦) · (2↑𝑚))) / (2↑𝑚)) ∈ (0[,)+∞)) |
| 30 | 29 | ralrimivva 3205 | . 2 ⊢ (𝜑 → ∀𝑚 ∈ ℕ ∀𝑦 ∈ ℝ ((⌊‘((𝐹‘𝑦) · (2↑𝑚))) / (2↑𝑚)) ∈ (0[,)+∞)) |
| 31 | mbfi1fseq.3 | . . 3 ⊢ 𝐽 = (𝑚 ∈ ℕ, 𝑦 ∈ ℝ ↦ ((⌊‘((𝐹‘𝑦) · (2↑𝑚))) / (2↑𝑚))) | |
| 32 | 31 | fmpo 8065 | . 2 ⊢ (∀𝑚 ∈ ℕ ∀𝑦 ∈ ℝ ((⌊‘((𝐹‘𝑦) · (2↑𝑚))) / (2↑𝑚)) ∈ (0[,)+∞) ↔ 𝐽:(ℕ × ℝ)⟶(0[,)+∞)) |
| 33 | 30, 32 | sylib 221 | 1 ⊢ (𝜑 → 𝐽:(ℕ × ℝ)⟶(0[,)+∞)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ∀wral 3076 class class class wbr 5103 × cxp 5653 ⟶wf 6529 ‘cfv 6533 (class class class)co 7413 ∈ cmpo 7415 ℝcr 11123 0cc0 11124 · cmul 11129 +∞cpnf 11264 < clt 11267 ≤ cle 11268 / cdiv 11895 ℕcn 12257 2c2 12319 ℕ0cn0 12528 [,)cico 13400 ⌊cfl 13851 ↑cexp 14125 MblFncmbf 25842 |
| 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 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7736 ax-cnex 11180 ax-resscn 11181 ax-1cn 11182 ax-icn 11183 ax-addcl 11184 ax-addrcl 11185 ax-mulcl 11186 ax-mulrcl 11187 ax-mulcom 11188 ax-addass 11189 ax-mulass 11190 ax-distr 11191 ax-i2m1 11192 ax-1ne0 11193 ax-1rid 11194 ax-rnegex 11195 ax-rrecex 11196 ax-cnre 11197 ax-pre-lttri 11198 ax-pre-lttrn 11199 ax-pre-ltadd 11200 ax-pre-mulgt0 11201 ax-pre-sup 11202 |
| 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 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7370 df-ov 7416 df-oprab 7417 df-mpo 7418 df-om 7863 df-1st 7986 df-2nd 7987 df-frecs 8280 df-wrecs 8311 df-recs 8360 df-rdg 8399 df-er 8696 df-en 8953 df-dom 8954 df-sdom 8955 df-sup 9412 df-inf 9413 df-pnf 11269 df-mnf 11270 df-xr 11271 df-ltxr 11272 df-le 11273 df-sub 11467 df-neg 11468 df-div 11896 df-nn 12258 df-2 12327 df-n0 12529 df-z 12616 df-uz 12888 df-ico 13404 df-fl 13853 df-seq 14066 df-exp 14126 |
| This theorem is used by: mbfi1fseqlem5 25947 |
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