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| Mirrors > Home > MPE Home > Th. List > axlowdimlem11 | Structured version Visualization version GIF version | ||
| Description: Lemma for axlowdim 28895. Calculate the value of 𝑄 at its distinguished point. (Contributed by Scott Fenton, 21-Apr-2013.) |
| Ref | Expression |
|---|---|
| axlowdimlem10.1 | ⊢ 𝑄 = ({〈(𝐼 + 1), 1〉} ∪ (((1...𝑁) ∖ {(𝐼 + 1)}) × {0})) |
| Ref | Expression |
|---|---|
| axlowdimlem11 | ⊢ (𝑄‘(𝐼 + 1)) = 1 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | axlowdimlem10.1 | . . 3 ⊢ 𝑄 = ({〈(𝐼 + 1), 1〉} ∪ (((1...𝑁) ∖ {(𝐼 + 1)}) × {0})) | |
| 2 | 1 | fveq1i 6862 | . 2 ⊢ (𝑄‘(𝐼 + 1)) = (({〈(𝐼 + 1), 1〉} ∪ (((1...𝑁) ∖ {(𝐼 + 1)}) × {0}))‘(𝐼 + 1)) |
| 3 | ovex 7423 | . . . 4 ⊢ (𝐼 + 1) ∈ V | |
| 4 | 1ex 11177 | . . . 4 ⊢ 1 ∈ V | |
| 5 | 3, 4 | fnsn 6577 | . . 3 ⊢ {〈(𝐼 + 1), 1〉} Fn {(𝐼 + 1)} |
| 6 | c0ex 11175 | . . . . 5 ⊢ 0 ∈ V | |
| 7 | 6 | fconst 6749 | . . . 4 ⊢ (((1...𝑁) ∖ {(𝐼 + 1)}) × {0}):((1...𝑁) ∖ {(𝐼 + 1)})⟶{0} |
| 8 | ffn 6691 | . . . 4 ⊢ ((((1...𝑁) ∖ {(𝐼 + 1)}) × {0}):((1...𝑁) ∖ {(𝐼 + 1)})⟶{0} → (((1...𝑁) ∖ {(𝐼 + 1)}) × {0}) Fn ((1...𝑁) ∖ {(𝐼 + 1)})) | |
| 9 | 7, 8 | ax-mp 5 | . . 3 ⊢ (((1...𝑁) ∖ {(𝐼 + 1)}) × {0}) Fn ((1...𝑁) ∖ {(𝐼 + 1)}) |
| 10 | disjdif 4438 | . . . 4 ⊢ ({(𝐼 + 1)} ∩ ((1...𝑁) ∖ {(𝐼 + 1)})) = ∅ | |
| 11 | 3 | snid 4629 | . . . 4 ⊢ (𝐼 + 1) ∈ {(𝐼 + 1)} |
| 12 | 10, 11 | pm3.2i 470 | . . 3 ⊢ (({(𝐼 + 1)} ∩ ((1...𝑁) ∖ {(𝐼 + 1)})) = ∅ ∧ (𝐼 + 1) ∈ {(𝐼 + 1)}) |
| 13 | fvun1 6955 | . . 3 ⊢ (({〈(𝐼 + 1), 1〉} Fn {(𝐼 + 1)} ∧ (((1...𝑁) ∖ {(𝐼 + 1)}) × {0}) Fn ((1...𝑁) ∖ {(𝐼 + 1)}) ∧ (({(𝐼 + 1)} ∩ ((1...𝑁) ∖ {(𝐼 + 1)})) = ∅ ∧ (𝐼 + 1) ∈ {(𝐼 + 1)})) → (({〈(𝐼 + 1), 1〉} ∪ (((1...𝑁) ∖ {(𝐼 + 1)}) × {0}))‘(𝐼 + 1)) = ({〈(𝐼 + 1), 1〉}‘(𝐼 + 1))) | |
| 14 | 5, 9, 12, 13 | mp3an 1463 | . 2 ⊢ (({〈(𝐼 + 1), 1〉} ∪ (((1...𝑁) ∖ {(𝐼 + 1)}) × {0}))‘(𝐼 + 1)) = ({〈(𝐼 + 1), 1〉}‘(𝐼 + 1)) |
| 15 | 3, 4 | fvsn 7158 | . 2 ⊢ ({〈(𝐼 + 1), 1〉}‘(𝐼 + 1)) = 1 |
| 16 | 2, 14, 15 | 3eqtri 2757 | 1 ⊢ (𝑄‘(𝐼 + 1)) = 1 |
| Colors of variables: wff setvar class |
| Syntax hints: ∧ wa 395 = wceq 1540 ∈ wcel 2109 ∖ cdif 3914 ∪ cun 3915 ∩ cin 3916 ∅c0 4299 {csn 4592 〈cop 4598 × cxp 5639 Fn wfn 6509 ⟶wf 6510 ‘cfv 6514 (class class class)co 7390 0cc0 11075 1c1 11076 + caddc 11078 ...cfz 13475 |
| 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 2702 ax-sep 5254 ax-nul 5264 ax-pr 5390 ax-1cn 11133 ax-icn 11134 ax-addcl 11135 ax-mulcl 11137 ax-i2m1 11143 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2534 df-eu 2563 df-clab 2709 df-cleq 2722 df-clel 2804 df-nfc 2879 df-ne 2927 df-ral 3046 df-rex 3055 df-rab 3409 df-v 3452 df-dif 3920 df-un 3922 df-in 3924 df-ss 3934 df-nul 4300 df-if 4492 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4875 df-br 5111 df-opab 5173 df-mpt 5192 df-id 5536 df-xp 5647 df-rel 5648 df-cnv 5649 df-co 5650 df-dm 5651 df-rn 5652 df-res 5653 df-ima 5654 df-iota 6467 df-fun 6516 df-fn 6517 df-f 6518 df-fv 6522 df-ov 7393 |
| This theorem is referenced by: axlowdimlem14 28889 axlowdimlem16 28891 |
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