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Mirrors > Home > MPE Home > Th. List > Mathboxes > k0004val0 | Structured version Visualization version GIF version |
Description: The topological simplex of dimension 0 is a singleton. (Contributed by RP, 2-Apr-2021.) |
Ref | Expression |
---|---|
k0004.a | ⊢ 𝐴 = (𝑛 ∈ ℕ0 ↦ {𝑡 ∈ ((0[,]1) ↑m (1...(𝑛 + 1))) ∣ Σ𝑘 ∈ (1...(𝑛 + 1))(𝑡‘𝑘) = 1}) |
Ref | Expression |
---|---|
k0004val0 | ⊢ (𝐴‘0) = {{〈1, 1〉}} |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 0nn0 12248 | . . 3 ⊢ 0 ∈ ℕ0 | |
2 | k0004.a | . . . 4 ⊢ 𝐴 = (𝑛 ∈ ℕ0 ↦ {𝑡 ∈ ((0[,]1) ↑m (1...(𝑛 + 1))) ∣ Σ𝑘 ∈ (1...(𝑛 + 1))(𝑡‘𝑘) = 1}) | |
3 | 2 | k0004val 41730 | . . 3 ⊢ (0 ∈ ℕ0 → (𝐴‘0) = {𝑡 ∈ ((0[,]1) ↑m (1...(0 + 1))) ∣ Σ𝑘 ∈ (1...(0 + 1))(𝑡‘𝑘) = 1}) |
4 | 1, 3 | ax-mp 5 | . 2 ⊢ (𝐴‘0) = {𝑡 ∈ ((0[,]1) ↑m (1...(0 + 1))) ∣ Σ𝑘 ∈ (1...(0 + 1))(𝑡‘𝑘) = 1} |
5 | 0p1e1 12095 | . . . . . . . 8 ⊢ (0 + 1) = 1 | |
6 | 5 | oveq2i 7282 | . . . . . . 7 ⊢ (1...(0 + 1)) = (1...1) |
7 | 1z 12350 | . . . . . . . 8 ⊢ 1 ∈ ℤ | |
8 | fzsn 13297 | . . . . . . . 8 ⊢ (1 ∈ ℤ → (1...1) = {1}) | |
9 | 7, 8 | ax-mp 5 | . . . . . . 7 ⊢ (1...1) = {1} |
10 | 6, 9 | eqtri 2768 | . . . . . 6 ⊢ (1...(0 + 1)) = {1} |
11 | 10 | oveq2i 7282 | . . . . 5 ⊢ ((0[,]1) ↑m (1...(0 + 1))) = ((0[,]1) ↑m {1}) |
12 | 11 | rabeqi 3415 | . . . 4 ⊢ {𝑡 ∈ ((0[,]1) ↑m (1...(0 + 1))) ∣ Σ𝑘 ∈ (1...(0 + 1))(𝑡‘𝑘) = 1} = {𝑡 ∈ ((0[,]1) ↑m {1}) ∣ Σ𝑘 ∈ (1...(0 + 1))(𝑡‘𝑘) = 1} |
13 | 10 | sumeq1i 15408 | . . . . . . 7 ⊢ Σ𝑘 ∈ (1...(0 + 1))(𝑡‘𝑘) = Σ𝑘 ∈ {1} (𝑡‘𝑘) |
14 | elmapi 8620 | . . . . . . . . 9 ⊢ (𝑡 ∈ ((0[,]1) ↑m {1}) → 𝑡:{1}⟶(0[,]1)) | |
15 | fsn2g 7007 | . . . . . . . . . . 11 ⊢ (1 ∈ ℤ → (𝑡:{1}⟶(0[,]1) ↔ ((𝑡‘1) ∈ (0[,]1) ∧ 𝑡 = {〈1, (𝑡‘1)〉}))) | |
16 | 7, 15 | ax-mp 5 | . . . . . . . . . 10 ⊢ (𝑡:{1}⟶(0[,]1) ↔ ((𝑡‘1) ∈ (0[,]1) ∧ 𝑡 = {〈1, (𝑡‘1)〉})) |
17 | 16 | biimpi 215 | . . . . . . . . 9 ⊢ (𝑡:{1}⟶(0[,]1) → ((𝑡‘1) ∈ (0[,]1) ∧ 𝑡 = {〈1, (𝑡‘1)〉})) |
18 | unitssre 13230 | . . . . . . . . . . . 12 ⊢ (0[,]1) ⊆ ℝ | |
19 | ax-resscn 10929 | . . . . . . . . . . . 12 ⊢ ℝ ⊆ ℂ | |
20 | 18, 19 | sstri 3935 | . . . . . . . . . . 11 ⊢ (0[,]1) ⊆ ℂ |
21 | 20 | sseli 3922 | . . . . . . . . . 10 ⊢ ((𝑡‘1) ∈ (0[,]1) → (𝑡‘1) ∈ ℂ) |
22 | 21 | adantr 481 | . . . . . . . . 9 ⊢ (((𝑡‘1) ∈ (0[,]1) ∧ 𝑡 = {〈1, (𝑡‘1)〉}) → (𝑡‘1) ∈ ℂ) |
23 | 14, 17, 22 | 3syl 18 | . . . . . . . 8 ⊢ (𝑡 ∈ ((0[,]1) ↑m {1}) → (𝑡‘1) ∈ ℂ) |
24 | fveq2 6771 | . . . . . . . . 9 ⊢ (𝑘 = 1 → (𝑡‘𝑘) = (𝑡‘1)) | |
25 | 24 | sumsn 15456 | . . . . . . . 8 ⊢ ((1 ∈ ℤ ∧ (𝑡‘1) ∈ ℂ) → Σ𝑘 ∈ {1} (𝑡‘𝑘) = (𝑡‘1)) |
26 | 7, 23, 25 | sylancr 587 | . . . . . . 7 ⊢ (𝑡 ∈ ((0[,]1) ↑m {1}) → Σ𝑘 ∈ {1} (𝑡‘𝑘) = (𝑡‘1)) |
27 | 13, 26 | eqtrid 2792 | . . . . . 6 ⊢ (𝑡 ∈ ((0[,]1) ↑m {1}) → Σ𝑘 ∈ (1...(0 + 1))(𝑡‘𝑘) = (𝑡‘1)) |
28 | 27 | eqeq1d 2742 | . . . . 5 ⊢ (𝑡 ∈ ((0[,]1) ↑m {1}) → (Σ𝑘 ∈ (1...(0 + 1))(𝑡‘𝑘) = 1 ↔ (𝑡‘1) = 1)) |
29 | 28 | rabbiia 3405 | . . . 4 ⊢ {𝑡 ∈ ((0[,]1) ↑m {1}) ∣ Σ𝑘 ∈ (1...(0 + 1))(𝑡‘𝑘) = 1} = {𝑡 ∈ ((0[,]1) ↑m {1}) ∣ (𝑡‘1) = 1} |
30 | 12, 29 | eqtri 2768 | . . 3 ⊢ {𝑡 ∈ ((0[,]1) ↑m (1...(0 + 1))) ∣ Σ𝑘 ∈ (1...(0 + 1))(𝑡‘𝑘) = 1} = {𝑡 ∈ ((0[,]1) ↑m {1}) ∣ (𝑡‘1) = 1} |
31 | rabeqsn 4608 | . . . 4 ⊢ ({𝑡 ∈ ((0[,]1) ↑m {1}) ∣ (𝑡‘1) = 1} = {{〈1, 1〉}} ↔ ∀𝑡((𝑡 ∈ ((0[,]1) ↑m {1}) ∧ (𝑡‘1) = 1) ↔ 𝑡 = {〈1, 1〉})) | |
32 | ovex 7304 | . . . . 5 ⊢ (0[,]1) ∈ V | |
33 | 1elunit 13201 | . . . . 5 ⊢ 1 ∈ (0[,]1) | |
34 | k0004lem3 41729 | . . . . 5 ⊢ ((1 ∈ ℤ ∧ (0[,]1) ∈ V ∧ 1 ∈ (0[,]1)) → ((𝑡 ∈ ((0[,]1) ↑m {1}) ∧ (𝑡‘1) = 1) ↔ 𝑡 = {〈1, 1〉})) | |
35 | 7, 32, 33, 34 | mp3an 1460 | . . . 4 ⊢ ((𝑡 ∈ ((0[,]1) ↑m {1}) ∧ (𝑡‘1) = 1) ↔ 𝑡 = {〈1, 1〉}) |
36 | 31, 35 | mpgbir 1806 | . . 3 ⊢ {𝑡 ∈ ((0[,]1) ↑m {1}) ∣ (𝑡‘1) = 1} = {{〈1, 1〉}} |
37 | 30, 36 | eqtri 2768 | . 2 ⊢ {𝑡 ∈ ((0[,]1) ↑m (1...(0 + 1))) ∣ Σ𝑘 ∈ (1...(0 + 1))(𝑡‘𝑘) = 1} = {{〈1, 1〉}} |
38 | 4, 37 | eqtri 2768 | 1 ⊢ (𝐴‘0) = {{〈1, 1〉}} |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 205 ∧ wa 396 = wceq 1542 ∈ wcel 2110 {crab 3070 Vcvv 3431 {csn 4567 〈cop 4573 ↦ cmpt 5162 ⟶wf 6428 ‘cfv 6432 (class class class)co 7271 ↑m cmap 8598 ℂcc 10870 ℝcr 10871 0cc0 10872 1c1 10873 + caddc 10875 ℕ0cn0 12233 ℤcz 12319 [,]cicc 13081 ...cfz 13238 Σcsu 15395 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1975 ax-7 2015 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2711 ax-rep 5214 ax-sep 5227 ax-nul 5234 ax-pow 5292 ax-pr 5356 ax-un 7582 ax-inf2 9377 ax-cnex 10928 ax-resscn 10929 ax-1cn 10930 ax-icn 10931 ax-addcl 10932 ax-addrcl 10933 ax-mulcl 10934 ax-mulrcl 10935 ax-mulcom 10936 ax-addass 10937 ax-mulass 10938 ax-distr 10939 ax-i2m1 10940 ax-1ne0 10941 ax-1rid 10942 ax-rnegex 10943 ax-rrecex 10944 ax-cnre 10945 ax-pre-lttri 10946 ax-pre-lttrn 10947 ax-pre-ltadd 10948 ax-pre-mulgt0 10949 ax-pre-sup 10950 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1545 df-fal 1555 df-ex 1787 df-nf 1791 df-sb 2072 df-mo 2542 df-eu 2571 df-clab 2718 df-cleq 2732 df-clel 2818 df-nfc 2891 df-ne 2946 df-nel 3052 df-ral 3071 df-rex 3072 df-reu 3073 df-rmo 3074 df-rab 3075 df-v 3433 df-sbc 3721 df-csb 3838 df-dif 3895 df-un 3897 df-in 3899 df-ss 3909 df-pss 3911 df-nul 4263 df-if 4466 df-pw 4541 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4846 df-int 4886 df-iun 4932 df-br 5080 df-opab 5142 df-mpt 5163 df-tr 5197 df-id 5490 df-eprel 5496 df-po 5504 df-so 5505 df-fr 5545 df-se 5546 df-we 5547 df-xp 5596 df-rel 5597 df-cnv 5598 df-co 5599 df-dm 5600 df-rn 5601 df-res 5602 df-ima 5603 df-pred 6201 df-ord 6268 df-on 6269 df-lim 6270 df-suc 6271 df-iota 6390 df-fun 6434 df-fn 6435 df-f 6436 df-f1 6437 df-fo 6438 df-f1o 6439 df-fv 6440 df-isom 6441 df-riota 7228 df-ov 7274 df-oprab 7275 df-mpo 7276 df-om 7707 df-1st 7824 df-2nd 7825 df-frecs 8088 df-wrecs 8119 df-recs 8193 df-rdg 8232 df-1o 8288 df-er 8481 df-map 8600 df-en 8717 df-dom 8718 df-sdom 8719 df-fin 8720 df-sup 9179 df-oi 9247 df-card 9698 df-pnf 11012 df-mnf 11013 df-xr 11014 df-ltxr 11015 df-le 11016 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 12582 df-rp 12730 df-icc 13085 df-fz 13239 df-fzo 13382 df-seq 13720 df-exp 13781 df-hash 14043 df-cj 14808 df-re 14809 df-im 14810 df-sqrt 14944 df-abs 14945 df-clim 15195 df-sum 15396 |
This theorem is referenced by: (None) |
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