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| Mirrors > Home > MPE Home > Th. List > axlowdimlem4 | Structured version Visualization version GIF version | ||
| Description: Lemma for axlowdim 28941. 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 12335 | . . . 4 ⊢ 1 ≠ 2 | |
| 2 | 1ex 11115 | . . . . 5 ⊢ 1 ∈ V | |
| 3 | 2ex 12209 | . . . . 5 ⊢ 2 ∈ V | |
| 4 | axlowdimlem4.1 | . . . . . 6 ⊢ 𝐴 ∈ ℝ | |
| 5 | 4 | elexi 3460 | . . . . 5 ⊢ 𝐴 ∈ V |
| 6 | axlowdimlem4.2 | . . . . . 6 ⊢ 𝐵 ∈ ℝ | |
| 7 | 6 | elexi 3460 | . . . . 5 ⊢ 𝐵 ∈ V |
| 8 | 2, 3, 5, 7 | fpr 7093 | . . . 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 13483 | . . . 4 ⊢ (1...2) = {1, 2} | |
| 11 | 10 | feq2i 6648 | . . 3 ⊢ ({〈1, 𝐴〉, 〈2, 𝐵〉}:(1...2)⟶{𝐴, 𝐵} ↔ {〈1, 𝐴〉, 〈2, 𝐵〉}:{1, 2}⟶{𝐴, 𝐵}) |
| 12 | 9, 11 | mpbir 231 | . 2 ⊢ {〈1, 𝐴〉, 〈2, 𝐵〉}:(1...2)⟶{𝐴, 𝐵} |
| 13 | 4, 6 | pm3.2i 470 | . . 3 ⊢ (𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) |
| 14 | 5, 7 | prss 4771 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ↔ {𝐴, 𝐵} ⊆ ℝ) |
| 15 | 13, 14 | mpbi 230 | . 2 ⊢ {𝐴, 𝐵} ⊆ ℝ |
| 16 | fss 6672 | . 2 ⊢ (({〈1, 𝐴〉, 〈2, 𝐵〉}:(1...2)⟶{𝐴, 𝐵} ∧ {𝐴, 𝐵} ⊆ ℝ) → {〈1, 𝐴〉, 〈2, 𝐵〉}:(1...2)⟶ℝ) | |
| 17 | 12, 15, 16 | mp2an 692 | 1 ⊢ {〈1, 𝐴〉, 〈2, 𝐵〉}:(1...2)⟶ℝ |
| Colors of variables: wff setvar class |
| Syntax hints: ∧ wa 395 ∈ wcel 2113 ≠ wne 2929 ⊆ wss 3898 {cpr 4577 〈cop 4581 ⟶wf 6482 (class class class)co 7352 ℝcr 11012 1c1 11014 2c2 12187 ...cfz 13409 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2705 ax-sep 5236 ax-nul 5246 ax-pow 5305 ax-pr 5372 ax-un 7674 ax-cnex 11069 ax-resscn 11070 ax-1cn 11071 ax-icn 11072 ax-addcl 11073 ax-addrcl 11074 ax-mulcl 11075 ax-mulrcl 11076 ax-mulcom 11077 ax-addass 11078 ax-mulass 11079 ax-distr 11080 ax-i2m1 11081 ax-1ne0 11082 ax-1rid 11083 ax-rnegex 11084 ax-rrecex 11085 ax-cnre 11086 ax-pre-lttri 11087 ax-pre-lttrn 11088 ax-pre-ltadd 11089 ax-pre-mulgt0 11090 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2537 df-eu 2566 df-clab 2712 df-cleq 2725 df-clel 2808 df-nfc 2882 df-ne 2930 df-nel 3034 df-ral 3049 df-rex 3058 df-reu 3348 df-rab 3397 df-v 3439 df-sbc 3738 df-csb 3847 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-pss 3918 df-nul 4283 df-if 4475 df-pw 4551 df-sn 4576 df-pr 4578 df-op 4582 df-uni 4859 df-iun 4943 df-br 5094 df-opab 5156 df-mpt 5175 df-tr 5201 df-id 5514 df-eprel 5519 df-po 5527 df-so 5528 df-fr 5572 df-we 5574 df-xp 5625 df-rel 5626 df-cnv 5627 df-co 5628 df-dm 5629 df-rn 5630 df-res 5631 df-ima 5632 df-pred 6253 df-ord 6314 df-on 6315 df-lim 6316 df-suc 6317 df-iota 6442 df-fun 6488 df-fn 6489 df-f 6490 df-f1 6491 df-fo 6492 df-f1o 6493 df-fv 6494 df-riota 7309 df-ov 7355 df-oprab 7356 df-mpo 7357 df-om 7803 df-1st 7927 df-2nd 7928 df-frecs 8217 df-wrecs 8248 df-recs 8297 df-rdg 8335 df-er 8628 df-en 8876 df-dom 8877 df-sdom 8878 df-pnf 11155 df-mnf 11156 df-xr 11157 df-ltxr 11158 df-le 11159 df-sub 11353 df-neg 11354 df-nn 12133 df-2 12195 df-n0 12389 df-z 12476 df-uz 12739 df-fz 13410 |
| This theorem is referenced by: axlowdimlem5 28926 axlowdimlem6 28927 axlowdimlem17 28938 |
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