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| Mirrors > Home > MPE Home > Th. List > aaliou3 | Structured version Visualization version GIF version | ||
| Description: Example of a "Liouville number", a very simple definable transcendental real. (Contributed by Stefan O'Rear, 23-Nov-2014.) |
| Ref | Expression |
|---|---|
| aaliou3 | ⊢ Σ𝑘 ∈ ℕ (2↑-(!‘𝑘)) ∉ 𝔸 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2729 | . . 3 ⊢ (𝑗 ∈ ℕ ↦ (2↑-(!‘𝑗))) = (𝑗 ∈ ℕ ↦ (2↑-(!‘𝑗))) | |
| 2 | fveq2 6822 | . . . . . . 7 ⊢ (𝑘 = 𝑖 → (!‘𝑘) = (!‘𝑖)) | |
| 3 | 2 | negeqd 11357 | . . . . . 6 ⊢ (𝑘 = 𝑖 → -(!‘𝑘) = -(!‘𝑖)) |
| 4 | 3 | oveq2d 7365 | . . . . 5 ⊢ (𝑘 = 𝑖 → (2↑-(!‘𝑘)) = (2↑-(!‘𝑖))) |
| 5 | 4 | cbvsumv 15603 | . . . 4 ⊢ Σ𝑘 ∈ ℕ (2↑-(!‘𝑘)) = Σ𝑖 ∈ ℕ (2↑-(!‘𝑖)) |
| 6 | fveq2 6822 | . . . . . . . . 9 ⊢ (𝑗 = 𝑖 → (!‘𝑗) = (!‘𝑖)) | |
| 7 | 6 | negeqd 11357 | . . . . . . . 8 ⊢ (𝑗 = 𝑖 → -(!‘𝑗) = -(!‘𝑖)) |
| 8 | 7 | oveq2d 7365 | . . . . . . 7 ⊢ (𝑗 = 𝑖 → (2↑-(!‘𝑗)) = (2↑-(!‘𝑖))) |
| 9 | ovex 7382 | . . . . . . 7 ⊢ (2↑-(!‘𝑖)) ∈ V | |
| 10 | 8, 1, 9 | fvmpt 6930 | . . . . . 6 ⊢ (𝑖 ∈ ℕ → ((𝑗 ∈ ℕ ↦ (2↑-(!‘𝑗)))‘𝑖) = (2↑-(!‘𝑖))) |
| 11 | 10 | eqcomd 2735 | . . . . 5 ⊢ (𝑖 ∈ ℕ → (2↑-(!‘𝑖)) = ((𝑗 ∈ ℕ ↦ (2↑-(!‘𝑗)))‘𝑖)) |
| 12 | 11 | sumeq2i 15605 | . . . 4 ⊢ Σ𝑖 ∈ ℕ (2↑-(!‘𝑖)) = Σ𝑖 ∈ ℕ ((𝑗 ∈ ℕ ↦ (2↑-(!‘𝑗)))‘𝑖) |
| 13 | 5, 12 | eqtri 2752 | . . 3 ⊢ Σ𝑘 ∈ ℕ (2↑-(!‘𝑘)) = Σ𝑖 ∈ ℕ ((𝑗 ∈ ℕ ↦ (2↑-(!‘𝑗)))‘𝑖) |
| 14 | eqid 2729 | . . 3 ⊢ (𝑙 ∈ ℕ ↦ Σ𝑖 ∈ (1...𝑙)((𝑗 ∈ ℕ ↦ (2↑-(!‘𝑗)))‘𝑖)) = (𝑙 ∈ ℕ ↦ Σ𝑖 ∈ (1...𝑙)((𝑗 ∈ ℕ ↦ (2↑-(!‘𝑗)))‘𝑖)) | |
| 15 | 1, 13, 14 | aaliou3lem9 26256 | . 2 ⊢ ¬ Σ𝑘 ∈ ℕ (2↑-(!‘𝑘)) ∈ 𝔸 |
| 16 | 15 | nelir 3032 | 1 ⊢ Σ𝑘 ∈ ℕ (2↑-(!‘𝑘)) ∉ 𝔸 |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2109 ∉ wnel 3029 ↦ cmpt 5173 ‘cfv 6482 (class class class)co 7349 1c1 11010 -cneg 11348 ℕcn 12128 2c2 12183 ...cfz 13410 ↑cexp 13968 !cfa 14180 Σcsu 15593 𝔸caa 26220 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-rep 5218 ax-sep 5235 ax-nul 5245 ax-pow 5304 ax-pr 5371 ax-un 7671 ax-inf2 9537 ax-cnex 11065 ax-resscn 11066 ax-1cn 11067 ax-icn 11068 ax-addcl 11069 ax-addrcl 11070 ax-mulcl 11071 ax-mulrcl 11072 ax-mulcom 11073 ax-addass 11074 ax-mulass 11075 ax-distr 11076 ax-i2m1 11077 ax-1ne0 11078 ax-1rid 11079 ax-rnegex 11080 ax-rrecex 11081 ax-cnre 11082 ax-pre-lttri 11083 ax-pre-lttrn 11084 ax-pre-ltadd 11085 ax-pre-mulgt0 11086 ax-pre-sup 11087 ax-addf 11088 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-nel 3030 df-ral 3045 df-rex 3054 df-rmo 3343 df-reu 3344 df-rab 3395 df-v 3438 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-pss 3923 df-nul 4285 df-if 4477 df-pw 4553 df-sn 4578 df-pr 4580 df-tp 4582 df-op 4584 df-uni 4859 df-int 4897 df-iun 4943 df-iin 4944 df-br 5093 df-opab 5155 df-mpt 5174 df-tr 5200 df-id 5514 df-eprel 5519 df-po 5527 df-so 5528 df-fr 5572 df-se 5573 df-we 5574 df-xp 5625 df-rel 5626 df-cnv 5627 df-co 5628 df-dm 5629 df-rn 5630 df-res 5631 df-ima 5632 df-pred 6249 df-ord 6310 df-on 6311 df-lim 6312 df-suc 6313 df-iota 6438 df-fun 6484 df-fn 6485 df-f 6486 df-f1 6487 df-fo 6488 df-f1o 6489 df-fv 6490 df-isom 6491 df-riota 7306 df-ov 7352 df-oprab 7353 df-mpo 7354 df-of 7613 df-om 7800 df-1st 7924 df-2nd 7925 df-supp 8094 df-frecs 8214 df-wrecs 8245 df-recs 8294 df-rdg 8332 df-1o 8388 df-2o 8389 df-oadd 8392 df-er 8625 df-map 8755 df-pm 8756 df-ixp 8825 df-en 8873 df-dom 8874 df-sdom 8875 df-fin 8876 df-fsupp 9252 df-fi 9301 df-sup 9332 df-inf 9333 df-oi 9402 df-dju 9797 df-card 9835 df-pnf 11151 df-mnf 11152 df-xr 11153 df-ltxr 11154 df-le 11155 df-sub 11349 df-neg 11350 df-div 11778 df-nn 12129 df-2 12191 df-3 12192 df-4 12193 df-5 12194 df-6 12195 df-7 12196 df-8 12197 df-9 12198 df-n0 12385 df-xnn0 12458 df-z 12472 df-dec 12592 df-uz 12736 df-q 12850 df-rp 12894 df-xneg 13014 df-xadd 13015 df-xmul 13016 df-ioo 13252 df-ioc 13253 df-ico 13254 df-icc 13255 df-fz 13411 df-fzo 13558 df-fl 13696 df-seq 13909 df-exp 13969 df-fac 14181 df-hash 14238 df-shft 14974 df-cj 15006 df-re 15007 df-im 15008 df-sqrt 15142 df-abs 15143 df-limsup 15378 df-clim 15395 df-rlim 15396 df-sum 15594 df-struct 17058 df-sets 17075 df-slot 17093 df-ndx 17105 df-base 17121 df-ress 17142 df-plusg 17174 df-mulr 17175 df-starv 17176 df-sca 17177 df-vsca 17178 df-ip 17179 df-tset 17180 df-ple 17181 df-ds 17183 df-unif 17184 df-hom 17185 df-cco 17186 df-rest 17326 df-topn 17327 df-0g 17345 df-gsum 17346 df-topgen 17347 df-pt 17348 df-prds 17351 df-xrs 17406 df-qtop 17411 df-imas 17412 df-xps 17414 df-mre 17488 df-mrc 17489 df-acs 17491 df-mgm 18514 df-sgrp 18593 df-mnd 18609 df-submnd 18658 df-grp 18815 df-minusg 18816 df-mulg 18947 df-subg 19002 df-cntz 19196 df-cmn 19661 df-abl 19662 df-mgp 20026 df-rng 20038 df-ur 20067 df-ring 20120 df-cring 20121 df-subrng 20431 df-subrg 20455 df-psmet 21253 df-xmet 21254 df-met 21255 df-bl 21256 df-mopn 21257 df-fbas 21258 df-fg 21259 df-cnfld 21262 df-top 22779 df-topon 22796 df-topsp 22818 df-bases 22831 df-cld 22904 df-ntr 22905 df-cls 22906 df-nei 22983 df-lp 23021 df-perf 23022 df-cn 23112 df-cnp 23113 df-haus 23200 df-cmp 23272 df-tx 23447 df-hmeo 23640 df-fil 23731 df-fm 23823 df-flim 23824 df-flf 23825 df-xms 24206 df-ms 24207 df-tms 24208 df-cncf 24769 df-0p 25569 df-limc 25765 df-dv 25766 df-dvn 25767 df-cpn 25768 df-ply 26091 df-idp 26092 df-coe 26093 df-dgr 26094 df-quot 26197 df-aa 26221 |
| This theorem is referenced by: (None) |
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