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| Mirrors > Home > MPE Home > Th. List > eleenn | Structured version Visualization version GIF version | ||
| Description: If 𝐴 is in (𝔼‘𝑁), then 𝑁 is a natural. (Contributed by Scott Fenton, 1-Jul-2013.) |
| Ref | Expression |
|---|---|
| eleenn | ⊢ (𝐴 ∈ (𝔼‘𝑁) → 𝑁 ∈ ℕ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-ee 28975 | . 2 ⊢ 𝔼 = (𝑛 ∈ ℕ ↦ (ℝ ↑m (1...𝑛))) | |
| 2 | 1 | mptrcl 6959 | 1 ⊢ (𝐴 ∈ (𝔼‘𝑁) → 𝑁 ∈ ℕ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2114 ‘cfv 6500 (class class class)co 7368 ↑m cmap 8775 ℝcr 11037 1c1 11039 ℕcn 12157 ...cfz 13435 𝔼cee 28972 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5243 ax-nul 5253 ax-pr 5379 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-rab 3402 df-v 3444 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-mpt 5182 df-xp 5638 df-rel 5639 df-cnv 5640 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-iota 6456 df-fv 6508 df-ee 28975 |
| This theorem is referenced by: eleei 28982 eedimeq 28983 brbtwn 28984 brcgr 28985 eleesub 28996 eleesubd 28997 axsegconlem1 29002 axsegconlem8 29009 axeuclidlem 29047 brsegle 36321 |
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