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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 6834 | . . 3 ⊢ ((𝑈 ∈ Univ ∧ 𝐴 ∈ 𝑈 ∧ 𝐹:𝐴⟶𝑈) → 𝐹 = (𝑥 ∈ 𝐴 ↦ (𝐹‘𝑥))) |
3 | fvex 6784 | . . . 4 ⊢ (𝐹‘𝑥) ∈ V | |
4 | 3 | fnasrn 7014 | . . 3 ⊢ (𝑥 ∈ 𝐴 ↦ (𝐹‘𝑥)) = ran (𝑥 ∈ 𝐴 ↦ 〈𝑥, (𝐹‘𝑥)〉) |
5 | 2, 4 | eqtrdi 2796 | . 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 10570 | . . . . . . 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 6956 | . . . . . 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 10572 | . . . . 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 6986 | . . 3 ⊢ ((𝑈 ∈ Univ ∧ 𝐴 ∈ 𝑈 ∧ 𝐹:𝐴⟶𝑈) → (𝑥 ∈ 𝐴 ↦ 〈𝑥, (𝐹‘𝑥)〉):𝐴⟶𝑈) |
15 | grurn 10568 | . . 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 2841 | 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 2110 〈cop 4573 ↦ cmpt 5162 ran crn 5591 ⟶wf 6428 ‘cfv 6432 Univcgru 10557 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1975 ax-7 2015 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2711 ax-sep 5227 ax-nul 5234 ax-pow 5292 ax-pr 5356 ax-un 7583 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3an 1088 df-tru 1545 df-fal 1555 df-ex 1787 df-nf 1791 df-sb 2072 df-mo 2542 df-eu 2571 df-clab 2718 df-cleq 2732 df-clel 2818 df-nfc 2891 df-ne 2946 df-ral 3071 df-rex 3072 df-reu 3073 df-rab 3075 df-v 3433 df-sbc 3721 df-csb 3838 df-dif 3895 df-un 3897 df-in 3899 df-ss 3909 df-nul 4263 df-if 4466 df-pw 4541 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4846 df-iun 4932 df-br 5080 df-opab 5142 df-mpt 5163 df-tr 5197 df-id 5490 df-xp 5596 df-rel 5597 df-cnv 5598 df-co 5599 df-dm 5600 df-rn 5601 df-res 5602 df-ima 5603 df-iota 6390 df-fun 6434 df-fn 6435 df-f 6436 df-f1 6437 df-fo 6438 df-f1o 6439 df-fv 6440 df-ov 7275 df-oprab 7276 df-mpo 7277 df-map 8609 df-gru 10558 |
This theorem is referenced by: (None) |
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