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| Mirrors > Home > MPE Home > Th. List > axlowdimlem10 | Structured version Visualization version GIF version | ||
| Description: Lemma for axlowdim 29426. Set up a family of points in Euclidean space. (Contributed by Scott Fenton, 21-Apr-2013.) |
| Ref | Expression |
|---|---|
| axlowdimlem10.1 | ⊢ 𝑄 = ({〈(𝐼 + 1), 1〉} ∪ (((1...𝑁) ∖ {(𝐼 + 1)}) × {0})) |
| Ref | Expression |
|---|---|
| axlowdimlem10 | ⊢ ((𝑁 ∈ ℕ ∧ 𝐼 ∈ (1...(𝑁 − 1))) → 𝑄 ∈ (𝔼‘𝑁)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ovex 7450 | . . . . . . . . 9 ⊢ (𝐼 + 1) ∈ V | |
| 2 | 1ex 11231 | . . . . . . . . 9 ⊢ 1 ∈ V | |
| 3 | 1, 2 | f1osn 6863 | . . . . . . . 8 ⊢ {〈(𝐼 + 1), 1〉}:{(𝐼 + 1)}–1-1-onto→{1} |
| 4 | f1of 6821 | . . . . . . . 8 ⊢ ({〈(𝐼 + 1), 1〉}:{(𝐼 + 1)}–1-1-onto→{1} → {〈(𝐼 + 1), 1〉}:{(𝐼 + 1)}⟶{1}) | |
| 5 | 3, 4 | ax-mp 5 | . . . . . . 7 ⊢ {〈(𝐼 + 1), 1〉}:{(𝐼 + 1)}⟶{1} |
| 6 | c0ex 11228 | . . . . . . . 8 ⊢ 0 ∈ V | |
| 7 | 6 | fconst 6765 | . . . . . . 7 ⊢ (((1...𝑁) ∖ {(𝐼 + 1)}) × {0}):((1...𝑁) ∖ {(𝐼 + 1)})⟶{0} |
| 8 | 5, 7 | pm3.2i 476 | . . . . . 6 ⊢ ({〈(𝐼 + 1), 1〉}:{(𝐼 + 1)}⟶{1} ∧ (((1...𝑁) ∖ {(𝐼 + 1)}) × {0}):((1...𝑁) ∖ {(𝐼 + 1)})⟶{0}) |
| 9 | disjdif 4429 | . . . . . 6 ⊢ ({(𝐼 + 1)} ∩ ((1...𝑁) ∖ {(𝐼 + 1)})) = ∅ | |
| 10 | fun 6741 | . . . . . 6 ⊢ ((({〈(𝐼 + 1), 1〉}:{(𝐼 + 1)}⟶{1} ∧ (((1...𝑁) ∖ {(𝐼 + 1)}) × {0}):((1...𝑁) ∖ {(𝐼 + 1)})⟶{0}) ∧ ({(𝐼 + 1)} ∩ ((1...𝑁) ∖ {(𝐼 + 1)})) = ∅) → ({〈(𝐼 + 1), 1〉} ∪ (((1...𝑁) ∖ {(𝐼 + 1)}) × {0})):({(𝐼 + 1)} ∪ ((1...𝑁) ∖ {(𝐼 + 1)}))⟶({1} ∪ {0})) | |
| 11 | 8, 9, 10 | mp2an 705 | . . . . 5 ⊢ ({〈(𝐼 + 1), 1〉} ∪ (((1...𝑁) ∖ {(𝐼 + 1)}) × {0})):({(𝐼 + 1)} ∪ ((1...𝑁) ∖ {(𝐼 + 1)}))⟶({1} ∪ {0}) |
| 12 | axlowdimlem10.1 | . . . . . 6 ⊢ 𝑄 = ({〈(𝐼 + 1), 1〉} ∪ (((1...𝑁) ∖ {(𝐼 + 1)}) × {0})) | |
| 13 | 12 | feq1i 6697 | . . . . 5 ⊢ (𝑄:({(𝐼 + 1)} ∪ ((1...𝑁) ∖ {(𝐼 + 1)}))⟶({1} ∪ {0}) ↔ ({〈(𝐼 + 1), 1〉} ∪ (((1...𝑁) ∖ {(𝐼 + 1)}) × {0})):({(𝐼 + 1)} ∪ ((1...𝑁) ∖ {(𝐼 + 1)}))⟶({1} ∪ {0})) |
| 14 | 11, 13 | mpbir 234 | . . . 4 ⊢ 𝑄:({(𝐼 + 1)} ∪ ((1...𝑁) ∖ {(𝐼 + 1)}))⟶({1} ∪ {0}) |
| 15 | 1re 11236 | . . . . . 6 ⊢ 1 ∈ ℝ | |
| 16 | snssi 4749 | . . . . . 6 ⊢ (1 ∈ ℝ → {1} ⊆ ℝ) | |
| 17 | 15, 16 | ax-mp 5 | . . . . 5 ⊢ {1} ⊆ ℝ |
| 18 | 0re 11238 | . . . . . 6 ⊢ 0 ∈ ℝ | |
| 19 | snssi 4749 | . . . . . 6 ⊢ (0 ∈ ℝ → {0} ⊆ ℝ) | |
| 20 | 18, 19 | ax-mp 5 | . . . . 5 ⊢ {0} ⊆ ℝ |
| 21 | 17, 20 | unssi 4140 | . . . 4 ⊢ ({1} ∪ {0}) ⊆ ℝ |
| 22 | fss 6723 | . . . 4 ⊢ ((𝑄:({(𝐼 + 1)} ∪ ((1...𝑁) ∖ {(𝐼 + 1)}))⟶({1} ∪ {0}) ∧ ({1} ∪ {0}) ⊆ ℝ) → 𝑄:({(𝐼 + 1)} ∪ ((1...𝑁) ∖ {(𝐼 + 1)}))⟶ℝ) | |
| 23 | 14, 21, 22 | mp2an 705 | . . 3 ⊢ 𝑄:({(𝐼 + 1)} ∪ ((1...𝑁) ∖ {(𝐼 + 1)}))⟶ℝ |
| 24 | fznatpl1 13637 | . . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ 𝐼 ∈ (1...(𝑁 − 1))) → (𝐼 + 1) ∈ (1...𝑁)) | |
| 25 | 24 | snssd 4750 | . . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ 𝐼 ∈ (1...(𝑁 − 1))) → {(𝐼 + 1)} ⊆ (1...𝑁)) |
| 26 | undif 4441 | . . . . 5 ⊢ ({(𝐼 + 1)} ⊆ (1...𝑁) ↔ ({(𝐼 + 1)} ∪ ((1...𝑁) ∖ {(𝐼 + 1)})) = (1...𝑁)) | |
| 27 | 25, 26 | sylib 221 | . . . 4 ⊢ ((𝑁 ∈ ℕ ∧ 𝐼 ∈ (1...(𝑁 − 1))) → ({(𝐼 + 1)} ∪ ((1...𝑁) ∖ {(𝐼 + 1)})) = (1...𝑁)) |
| 28 | 27 | feq2d 6690 | . . 3 ⊢ ((𝑁 ∈ ℕ ∧ 𝐼 ∈ (1...(𝑁 − 1))) → (𝑄:({(𝐼 + 1)} ∪ ((1...𝑁) ∖ {(𝐼 + 1)}))⟶ℝ ↔ 𝑄:(1...𝑁)⟶ℝ)) |
| 29 | 23, 28 | mpbii 236 | . 2 ⊢ ((𝑁 ∈ ℕ ∧ 𝐼 ∈ (1...(𝑁 − 1))) → 𝑄:(1...𝑁)⟶ℝ) |
| 30 | elee 29358 | . . 3 ⊢ (𝑁 ∈ ℕ → (𝑄 ∈ (𝔼‘𝑁) ↔ 𝑄:(1...𝑁)⟶ℝ)) | |
| 31 | 30 | adantr 486 | . 2 ⊢ ((𝑁 ∈ ℕ ∧ 𝐼 ∈ (1...(𝑁 − 1))) → (𝑄 ∈ (𝔼‘𝑁) ↔ 𝑄:(1...𝑁)⟶ℝ)) |
| 32 | 29, 31 | mpbird 260 | 1 ⊢ ((𝑁 ∈ ℕ ∧ 𝐼 ∈ (1...(𝑁 − 1))) → 𝑄 ∈ (𝔼‘𝑁)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ∖ cdif 3899 ∪ cun 3900 ∩ cin 3901 ⊆ wss 3902 ∅c0 4282 {csn 4587 〈cop 4593 × cxp 5657 ⟶wf 6533 –1-1-onto→wf1o 6536 ‘cfv 6537 (class class class)co 7417 ℝcr 11127 0cc0 11128 1c1 11129 + caddc 11131 − cmin 11469 ℕcn 12261 ...cfz 13565 𝔼cee 29352 |
| 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 2215 ax-ext 2734 ax-sep 5255 ax-nul 5267 ax-pow 5334 ax-pr 5402 ax-un 7740 ax-cnex 11184 ax-resscn 11185 ax-1cn 11186 ax-icn 11187 ax-addcl 11188 ax-addrcl 11189 ax-mulcl 11190 ax-mulrcl 11191 ax-mulcom 11192 ax-addass 11193 ax-mulass 11194 ax-distr 11195 ax-i2m1 11196 ax-1ne0 11197 ax-1rid 11198 ax-rnegex 11199 ax-rrecex 11200 ax-cnre 11201 ax-pre-lttri 11202 ax-pre-lttrn 11203 ax-pre-ltadd 11204 ax-pre-mulgt0 11205 |
| 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 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-reu 3368 df-rab 3415 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-iun 4956 df-br 5108 df-opab 5172 df-mpt 5191 df-tr 5217 df-id 5554 df-eprel 5559 df-po 5567 df-so 5568 df-fr 5612 df-we 5614 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 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 7374 df-ov 7420 df-oprab 7421 df-mpo 7422 df-om 7867 df-1st 7990 df-2nd 7991 df-frecs 8284 df-wrecs 8315 df-recs 8364 df-rdg 8403 df-er 8700 df-map 8832 df-en 8957 df-dom 8958 df-sdom 8959 df-pnf 11273 df-mnf 11274 df-xr 11275 df-ltxr 11276 df-le 11277 df-sub 11471 df-neg 11472 df-nn 12262 df-n0 12533 df-z 12620 df-uz 12892 df-fz 13566 df-ee 29355 |
| This theorem is used by: axlowdimlem14 29420 axlowdimlem15 29421 axlowdimlem16 29422 axlowdimlem17 29423 |
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