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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 41760 | . . 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 7286 | . . . . . . 7 ⊢ (1...(0 + 1)) = (1...1) |
7 | 1z 12350 | . . . . . . . 8 ⊢ 1 ∈ ℤ | |
8 | fzsn 13298 | . . . . . . . 8 ⊢ (1 ∈ ℤ → (1...1) = {1}) | |
9 | 7, 8 | ax-mp 5 | . . . . . . 7 ⊢ (1...1) = {1} |
10 | 6, 9 | eqtri 2766 | . . . . . 6 ⊢ (1...(0 + 1)) = {1} |
11 | 10 | oveq2i 7286 | . . . . 5 ⊢ ((0[,]1) ↑m (1...(0 + 1))) = ((0[,]1) ↑m {1}) |
12 | 11 | rabeqi 3416 | . . . 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 15410 | . . . . . . 7 ⊢ Σ𝑘 ∈ (1...(0 + 1))(𝑡‘𝑘) = Σ𝑘 ∈ {1} (𝑡‘𝑘) |
14 | elmapi 8637 | . . . . . . . . 9 ⊢ (𝑡 ∈ ((0[,]1) ↑m {1}) → 𝑡:{1}⟶(0[,]1)) | |
15 | fsn2g 7010 | . . . . . . . . . . 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 13231 | . . . . . . . . . . . 12 ⊢ (0[,]1) ⊆ ℝ | |
19 | ax-resscn 10928 | . . . . . . . . . . . 12 ⊢ ℝ ⊆ ℂ | |
20 | 18, 19 | sstri 3930 | . . . . . . . . . . 11 ⊢ (0[,]1) ⊆ ℂ |
21 | 20 | sseli 3917 | . . . . . . . . . 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 6774 | . . . . . . . . 9 ⊢ (𝑘 = 1 → (𝑡‘𝑘) = (𝑡‘1)) | |
25 | 24 | sumsn 15458 | . . . . . . . 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 2790 | . . . . . 6 ⊢ (𝑡 ∈ ((0[,]1) ↑m {1}) → Σ𝑘 ∈ (1...(0 + 1))(𝑡‘𝑘) = (𝑡‘1)) |
28 | 27 | eqeq1d 2740 | . . . . 5 ⊢ (𝑡 ∈ ((0[,]1) ↑m {1}) → (Σ𝑘 ∈ (1...(0 + 1))(𝑡‘𝑘) = 1 ↔ (𝑡‘1) = 1)) |
29 | 28 | rabbiia 3407 | . . . 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 2766 | . . 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 4602 | . . . 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 7308 | . . . . 5 ⊢ (0[,]1) ∈ V | |
33 | 1elunit 13202 | . . . . 5 ⊢ 1 ∈ (0[,]1) | |
34 | k0004lem3 41759 | . . . . 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 1802 | . . 3 ⊢ {𝑡 ∈ ((0[,]1) ↑m {1}) ∣ (𝑡‘1) = 1} = {{〈1, 1〉}} |
37 | 30, 36 | eqtri 2766 | . 2 ⊢ {𝑡 ∈ ((0[,]1) ↑m (1...(0 + 1))) ∣ Σ𝑘 ∈ (1...(0 + 1))(𝑡‘𝑘) = 1} = {{〈1, 1〉}} |
38 | 4, 37 | eqtri 2766 | 1 ⊢ (𝐴‘0) = {{〈1, 1〉}} |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 205 ∧ wa 396 = wceq 1539 ∈ wcel 2106 {crab 3068 Vcvv 3432 {csn 4561 〈cop 4567 ↦ cmpt 5157 ⟶wf 6429 ‘cfv 6433 (class class class)co 7275 ↑m cmap 8615 ℂcc 10869 ℝcr 10870 0cc0 10871 1c1 10872 + caddc 10874 ℕ0cn0 12233 ℤcz 12319 [,]cicc 13082 ...cfz 13239 Σcsu 15397 |
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-inf2 9399 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 ax-pre-sup 10949 |
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-int 4880 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-se 5545 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-isom 6442 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-om 7713 df-1st 7831 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-1o 8297 df-er 8498 df-map 8617 df-en 8734 df-dom 8735 df-sdom 8736 df-fin 8737 df-sup 9201 df-oi 9269 df-card 9697 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-rp 12731 df-icc 13086 df-fz 13240 df-fzo 13383 df-seq 13722 df-exp 13783 df-hash 14045 df-cj 14810 df-re 14811 df-im 14812 df-sqrt 14946 df-abs 14947 df-clim 15197 df-sum 15398 |
This theorem is referenced by: (None) |
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