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| Mirrors > Home > MPE Home > Th. List > mbfi1fseqlem1 | Structured version Visualization version GIF version | ||
| Description: Lemma for mbfi1fseq 26035. (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 7079 | . . . . . . . . . 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 13578 | . . . . . . . . 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 12409 | . . . . . . . . . 10 ⊢ 2 ∈ ℕ | |
| 9 | nnnn0 12606 | . . . . . . . . . 10 ⊢ (𝑚 ∈ ℕ → 𝑚 ∈ ℕ0) | |
| 10 | nnexpcl 14210 | . . . . . . . . . 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 12343 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → (2↑𝑚) ∈ ℝ) |
| 14 | 7, 13 | remulcld 11332 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → ((𝐹‘𝑦) · (2↑𝑚)) ∈ ℝ) |
| 15 | reflcl 13929 | . . . . . 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 12385 | . . . 4 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → ((⌊‘((𝐹‘𝑦) · (2↑𝑚))) / (2↑𝑚)) ∈ ℝ) |
| 18 | 12 | nnnn0d 12660 | . . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → (2↑𝑚) ∈ ℕ0) |
| 19 | 18 | nn0ge0d 12663 | . . . . . . . 8 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → 0 ≤ (2↑𝑚)) |
| 20 | mulge0 11827 | . . . . . . . 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 13953 | . . . . . . 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 12663 | . . . . 5 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → 0 ≤ (⌊‘((𝐹‘𝑦) · (2↑𝑚)))) |
| 25 | 12 | nngt0d 12380 | . . . . 5 ⊢ ((𝜑 ∧ (𝑚 ∈ ℕ ∧ 𝑦 ∈ ℝ)) → 0 < (2↑𝑚)) |
| 26 | divge0 12179 | . . . . 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 13578 | . . . 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 3206 | . 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 8077 | . 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 3077 class class class wbr 5103 × cxp 5649 ⟶wf 6533 ‘cfv 6537 (class class class)co 7418 ∈ cmpo 7420 ℝcr 11192 0cc0 11193 · cmul 11198 +∞cpnf 11333 < clt 11336 ≤ cle 11337 / cdiv 11966 ℕcn 12328 2c2 12390 ℕ0cn0 12599 [,)cico 13471 ⌊cfl 13923 ↑cexp 14197 MblFncmbf 25928 |
| 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 2733 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7749 ax-cnex 11249 ax-resscn 11250 ax-1cn 11251 ax-icn 11252 ax-addcl 11253 ax-addrcl 11254 ax-mulcl 11255 ax-mulrcl 11256 ax-mulcom 11257 ax-addass 11258 ax-mulass 11259 ax-distr 11260 ax-i2m1 11261 ax-1ne0 11262 ax-1rid 11263 ax-rnegex 11264 ax-rrecex 11265 ax-cnre 11266 ax-pre-lttri 11267 ax-pre-lttrn 11268 ax-pre-ltadd 11269 ax-pre-mulgt0 11270 ax-pre-sup 11271 |
| 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 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3453 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 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7375 df-ov 7421 df-oprab 7422 df-mpo 7423 df-om 7876 df-1st 7999 df-2nd 8000 df-frecs 8292 df-wrecs 8323 df-recs 8372 df-rdg 8411 df-er 8710 df-en 8967 df-dom 8968 df-sdom 8969 df-sup 9427 df-inf 9428 df-pnf 11338 df-mnf 11339 df-xr 11340 df-ltxr 11341 df-le 11342 df-sub 11536 df-neg 11537 df-div 11967 df-nn 12329 df-2 12398 df-n0 12600 df-z 12687 df-uz 12959 df-ico 13475 df-fl 13925 df-seq 14138 df-exp 14198 |
| This theorem is used by: mbfi1fseqlem5 26033 |
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