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Mirrors > Home > MPE Home > Th. List > axlowdimlem4 | Structured version Visualization version GIF version |
Description: Lemma for axlowdim 26741. Set up a particular constant function. (Contributed by Scott Fenton, 17-Apr-2013.) |
Ref | Expression |
---|---|
axlowdimlem4.1 | ⊢ 𝐴 ∈ ℝ |
axlowdimlem4.2 | ⊢ 𝐵 ∈ ℝ |
Ref | Expression |
---|---|
axlowdimlem4 | ⊢ {〈1, 𝐴〉, 〈2, 𝐵〉}:(1...2)⟶ℝ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 1ne2 11839 | . . . 4 ⊢ 1 ≠ 2 | |
2 | 1ex 10631 | . . . . 5 ⊢ 1 ∈ V | |
3 | 2ex 11708 | . . . . 5 ⊢ 2 ∈ V | |
4 | axlowdimlem4.1 | . . . . . 6 ⊢ 𝐴 ∈ ℝ | |
5 | 4 | elexi 3514 | . . . . 5 ⊢ 𝐴 ∈ V |
6 | axlowdimlem4.2 | . . . . . 6 ⊢ 𝐵 ∈ ℝ | |
7 | 6 | elexi 3514 | . . . . 5 ⊢ 𝐵 ∈ V |
8 | 2, 3, 5, 7 | fpr 6911 | . . . 4 ⊢ (1 ≠ 2 → {〈1, 𝐴〉, 〈2, 𝐵〉}:{1, 2}⟶{𝐴, 𝐵}) |
9 | 1, 8 | ax-mp 5 | . . 3 ⊢ {〈1, 𝐴〉, 〈2, 𝐵〉}:{1, 2}⟶{𝐴, 𝐵} |
10 | fz12pr 12958 | . . . 4 ⊢ (1...2) = {1, 2} | |
11 | 10 | feq2i 6501 | . . 3 ⊢ ({〈1, 𝐴〉, 〈2, 𝐵〉}:(1...2)⟶{𝐴, 𝐵} ↔ {〈1, 𝐴〉, 〈2, 𝐵〉}:{1, 2}⟶{𝐴, 𝐵}) |
12 | 9, 11 | mpbir 233 | . 2 ⊢ {〈1, 𝐴〉, 〈2, 𝐵〉}:(1...2)⟶{𝐴, 𝐵} |
13 | 4, 6 | pm3.2i 473 | . . 3 ⊢ (𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) |
14 | 5, 7 | prss 4747 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ↔ {𝐴, 𝐵} ⊆ ℝ) |
15 | 13, 14 | mpbi 232 | . 2 ⊢ {𝐴, 𝐵} ⊆ ℝ |
16 | fss 6522 | . 2 ⊢ (({〈1, 𝐴〉, 〈2, 𝐵〉}:(1...2)⟶{𝐴, 𝐵} ∧ {𝐴, 𝐵} ⊆ ℝ) → {〈1, 𝐴〉, 〈2, 𝐵〉}:(1...2)⟶ℝ) | |
17 | 12, 15, 16 | mp2an 690 | 1 ⊢ {〈1, 𝐴〉, 〈2, 𝐵〉}:(1...2)⟶ℝ |
Colors of variables: wff setvar class |
Syntax hints: ∧ wa 398 ∈ wcel 2110 ≠ wne 3016 ⊆ wss 3936 {cpr 4563 〈cop 4567 ⟶wf 6346 (class class class)co 7150 ℝcr 10530 1c1 10532 2c2 11686 ...cfz 12886 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2156 ax-12 2172 ax-ext 2793 ax-sep 5196 ax-nul 5203 ax-pow 5259 ax-pr 5322 ax-un 7455 ax-cnex 10587 ax-resscn 10588 ax-1cn 10589 ax-icn 10590 ax-addcl 10591 ax-addrcl 10592 ax-mulcl 10593 ax-mulrcl 10594 ax-mulcom 10595 ax-addass 10596 ax-mulass 10597 ax-distr 10598 ax-i2m1 10599 ax-1ne0 10600 ax-1rid 10601 ax-rnegex 10602 ax-rrecex 10603 ax-cnre 10604 ax-pre-lttri 10605 ax-pre-lttrn 10606 ax-pre-ltadd 10607 ax-pre-mulgt0 10608 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rab 3147 df-v 3497 df-sbc 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-pss 3954 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4562 df-pr 4564 df-tp 4566 df-op 4568 df-uni 4833 df-iun 4914 df-br 5060 df-opab 5122 df-mpt 5140 df-tr 5166 df-id 5455 df-eprel 5460 df-po 5469 df-so 5470 df-fr 5509 df-we 5511 df-xp 5556 df-rel 5557 df-cnv 5558 df-co 5559 df-dm 5560 df-rn 5561 df-res 5562 df-ima 5563 df-pred 6143 df-ord 6189 df-on 6190 df-lim 6191 df-suc 6192 df-iota 6309 df-fun 6352 df-fn 6353 df-f 6354 df-f1 6355 df-fo 6356 df-f1o 6357 df-fv 6358 df-riota 7108 df-ov 7153 df-oprab 7154 df-mpo 7155 df-om 7575 df-1st 7683 df-2nd 7684 df-wrecs 7941 df-recs 8002 df-rdg 8040 df-er 8283 df-en 8504 df-dom 8505 df-sdom 8506 df-pnf 10671 df-mnf 10672 df-xr 10673 df-ltxr 10674 df-le 10675 df-sub 10866 df-neg 10867 df-nn 11633 df-2 11694 df-n0 11892 df-z 11976 df-uz 12238 df-fz 12887 |
This theorem is referenced by: axlowdimlem5 26726 axlowdimlem6 26727 axlowdimlem17 26738 |
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