Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > gruf | Structured version Visualization version GIF version |
Description: A Grothendieck universe contains all functions on its elements. (Contributed by Mario Carneiro, 10-Jun-2013.) |
Ref | Expression |
---|---|
gruf | ⊢ ((𝑈 ∈ Univ ∧ 𝐴 ∈ 𝑈 ∧ 𝐹:𝐴⟶𝑈) → 𝐹 ∈ 𝑈) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simp3 1137 | . . . 4 ⊢ ((𝑈 ∈ Univ ∧ 𝐴 ∈ 𝑈 ∧ 𝐹:𝐴⟶𝑈) → 𝐹:𝐴⟶𝑈) | |
2 | 1 | feqmptd 6837 | . . 3 ⊢ ((𝑈 ∈ Univ ∧ 𝐴 ∈ 𝑈 ∧ 𝐹:𝐴⟶𝑈) → 𝐹 = (𝑥 ∈ 𝐴 ↦ (𝐹‘𝑥))) |
3 | fvex 6787 | . . . 4 ⊢ (𝐹‘𝑥) ∈ V | |
4 | 3 | fnasrn 7017 | . . 3 ⊢ (𝑥 ∈ 𝐴 ↦ (𝐹‘𝑥)) = ran (𝑥 ∈ 𝐴 ↦ 〈𝑥, (𝐹‘𝑥)〉) |
5 | 2, 4 | eqtrdi 2794 | . 2 ⊢ ((𝑈 ∈ Univ ∧ 𝐴 ∈ 𝑈 ∧ 𝐹:𝐴⟶𝑈) → 𝐹 = ran (𝑥 ∈ 𝐴 ↦ 〈𝑥, (𝐹‘𝑥)〉)) |
6 | simpl1 1190 | . . . . 5 ⊢ (((𝑈 ∈ Univ ∧ 𝐴 ∈ 𝑈 ∧ 𝐹:𝐴⟶𝑈) ∧ 𝑥 ∈ 𝐴) → 𝑈 ∈ Univ) | |
7 | gruel 10559 | . . . . . . 7 ⊢ ((𝑈 ∈ Univ ∧ 𝐴 ∈ 𝑈 ∧ 𝑥 ∈ 𝐴) → 𝑥 ∈ 𝑈) | |
8 | 7 | 3expa 1117 | . . . . . 6 ⊢ (((𝑈 ∈ Univ ∧ 𝐴 ∈ 𝑈) ∧ 𝑥 ∈ 𝐴) → 𝑥 ∈ 𝑈) |
9 | 8 | 3adantl3 1167 | . . . . 5 ⊢ (((𝑈 ∈ Univ ∧ 𝐴 ∈ 𝑈 ∧ 𝐹:𝐴⟶𝑈) ∧ 𝑥 ∈ 𝐴) → 𝑥 ∈ 𝑈) |
10 | ffvelrn 6959 | . . . . . 6 ⊢ ((𝐹:𝐴⟶𝑈 ∧ 𝑥 ∈ 𝐴) → (𝐹‘𝑥) ∈ 𝑈) | |
11 | 10 | 3ad2antl3 1186 | . . . . 5 ⊢ (((𝑈 ∈ Univ ∧ 𝐴 ∈ 𝑈 ∧ 𝐹:𝐴⟶𝑈) ∧ 𝑥 ∈ 𝐴) → (𝐹‘𝑥) ∈ 𝑈) |
12 | gruop 10561 | . . . . 5 ⊢ ((𝑈 ∈ Univ ∧ 𝑥 ∈ 𝑈 ∧ (𝐹‘𝑥) ∈ 𝑈) → 〈𝑥, (𝐹‘𝑥)〉 ∈ 𝑈) | |
13 | 6, 9, 11, 12 | syl3anc 1370 | . . . 4 ⊢ (((𝑈 ∈ Univ ∧ 𝐴 ∈ 𝑈 ∧ 𝐹:𝐴⟶𝑈) ∧ 𝑥 ∈ 𝐴) → 〈𝑥, (𝐹‘𝑥)〉 ∈ 𝑈) |
14 | 13 | fmpttd 6989 | . . 3 ⊢ ((𝑈 ∈ Univ ∧ 𝐴 ∈ 𝑈 ∧ 𝐹:𝐴⟶𝑈) → (𝑥 ∈ 𝐴 ↦ 〈𝑥, (𝐹‘𝑥)〉):𝐴⟶𝑈) |
15 | grurn 10557 | . . 3 ⊢ ((𝑈 ∈ Univ ∧ 𝐴 ∈ 𝑈 ∧ (𝑥 ∈ 𝐴 ↦ 〈𝑥, (𝐹‘𝑥)〉):𝐴⟶𝑈) → ran (𝑥 ∈ 𝐴 ↦ 〈𝑥, (𝐹‘𝑥)〉) ∈ 𝑈) | |
16 | 14, 15 | syld3an3 1408 | . 2 ⊢ ((𝑈 ∈ Univ ∧ 𝐴 ∈ 𝑈 ∧ 𝐹:𝐴⟶𝑈) → ran (𝑥 ∈ 𝐴 ↦ 〈𝑥, (𝐹‘𝑥)〉) ∈ 𝑈) |
17 | 5, 16 | eqeltrd 2839 | 1 ⊢ ((𝑈 ∈ Univ ∧ 𝐴 ∈ 𝑈 ∧ 𝐹:𝐴⟶𝑈) → 𝐹 ∈ 𝑈) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 ∧ w3a 1086 ∈ wcel 2106 〈cop 4567 ↦ cmpt 5157 ran crn 5590 ⟶wf 6429 ‘cfv 6433 Univcgru 10546 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-ral 3069 df-rex 3070 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-ov 7278 df-oprab 7279 df-mpo 7280 df-map 8617 df-gru 10547 |
This theorem is referenced by: (None) |
Copyright terms: Public domain | W3C validator |