Proof of Theorem frlmphllem
Step | Hyp | Ref
| Expression |
1 | | frlmphl.i |
. . . . . . . . 9
⊢ (𝜑 → 𝐼 ∈ 𝑊) |
2 | 1 | 3ad2ant1 1131 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → 𝐼 ∈ 𝑊) |
3 | | simp2 1135 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → 𝑔 ∈ 𝑉) |
4 | | frlmphl.y |
. . . . . . . . 9
⊢ 𝑌 = (𝑅 freeLMod 𝐼) |
5 | | frlmphl.b |
. . . . . . . . 9
⊢ 𝐵 = (Base‘𝑅) |
6 | | frlmphl.v |
. . . . . . . . 9
⊢ 𝑉 = (Base‘𝑌) |
7 | 4, 5, 6 | frlmbasmap 20876 |
. . . . . . . 8
⊢ ((𝐼 ∈ 𝑊 ∧ 𝑔 ∈ 𝑉) → 𝑔 ∈ (𝐵 ↑m 𝐼)) |
8 | 2, 3, 7 | syl2anc 583 |
. . . . . . 7
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → 𝑔 ∈ (𝐵 ↑m 𝐼)) |
9 | | elmapi 8595 |
. . . . . . 7
⊢ (𝑔 ∈ (𝐵 ↑m 𝐼) → 𝑔:𝐼⟶𝐵) |
10 | 8, 9 | syl 17 |
. . . . . 6
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → 𝑔:𝐼⟶𝐵) |
11 | 10 | ffnd 6585 |
. . . . 5
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → 𝑔 Fn 𝐼) |
12 | | simp3 1136 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → ℎ ∈ 𝑉) |
13 | 4, 5, 6 | frlmbasmap 20876 |
. . . . . . . 8
⊢ ((𝐼 ∈ 𝑊 ∧ ℎ ∈ 𝑉) → ℎ ∈ (𝐵 ↑m 𝐼)) |
14 | 2, 12, 13 | syl2anc 583 |
. . . . . . 7
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → ℎ ∈ (𝐵 ↑m 𝐼)) |
15 | | elmapi 8595 |
. . . . . . 7
⊢ (ℎ ∈ (𝐵 ↑m 𝐼) → ℎ:𝐼⟶𝐵) |
16 | 14, 15 | syl 17 |
. . . . . 6
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → ℎ:𝐼⟶𝐵) |
17 | 16 | ffnd 6585 |
. . . . 5
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → ℎ Fn 𝐼) |
18 | | inidm 4149 |
. . . . 5
⊢ (𝐼 ∩ 𝐼) = 𝐼 |
19 | | eqidd 2739 |
. . . . 5
⊢ (((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) ∧ 𝑥 ∈ 𝐼) → (𝑔‘𝑥) = (𝑔‘𝑥)) |
20 | | eqidd 2739 |
. . . . 5
⊢ (((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) ∧ 𝑥 ∈ 𝐼) → (ℎ‘𝑥) = (ℎ‘𝑥)) |
21 | 11, 17, 2, 2, 18, 19, 20 | offval 7520 |
. . . 4
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → (𝑔 ∘f · ℎ) = (𝑥 ∈ 𝐼 ↦ ((𝑔‘𝑥) · (ℎ‘𝑥)))) |
22 | 21 | oveq1d 7270 |
. . 3
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → ((𝑔 ∘f · ℎ) supp 0 ) = ((𝑥 ∈ 𝐼 ↦ ((𝑔‘𝑥) · (ℎ‘𝑥))) supp 0 )) |
23 | | ovexd 7290 |
. . . 4
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → (𝑔 ∘f · ℎ) ∈ V) |
24 | | funmpt 6456 |
. . . . . 6
⊢ Fun
(𝑥 ∈ 𝐼 ↦ ((𝑔‘𝑥) · (ℎ‘𝑥))) |
25 | | funeq 6438 |
. . . . . 6
⊢ ((𝑔 ∘f · ℎ) = (𝑥 ∈ 𝐼 ↦ ((𝑔‘𝑥) · (ℎ‘𝑥))) → (Fun (𝑔 ∘f · ℎ) ↔ Fun (𝑥 ∈ 𝐼 ↦ ((𝑔‘𝑥) · (ℎ‘𝑥))))) |
26 | 24, 25 | mpbiri 257 |
. . . . 5
⊢ ((𝑔 ∘f · ℎ) = (𝑥 ∈ 𝐼 ↦ ((𝑔‘𝑥) · (ℎ‘𝑥))) → Fun (𝑔 ∘f · ℎ)) |
27 | 21, 26 | syl 17 |
. . . 4
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → Fun (𝑔 ∘f · ℎ)) |
28 | | frlmphl.0 |
. . . . . 6
⊢ 0 =
(0g‘𝑅) |
29 | 4, 28, 6 | frlmbasfsupp 20875 |
. . . . 5
⊢ ((𝐼 ∈ 𝑊 ∧ 𝑔 ∈ 𝑉) → 𝑔 finSupp 0 ) |
30 | 2, 3, 29 | syl2anc 583 |
. . . 4
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → 𝑔 finSupp 0 ) |
31 | | frlmphl.f |
. . . . . . . . . 10
⊢ (𝜑 → 𝑅 ∈ Field) |
32 | | isfld 19915 |
. . . . . . . . . 10
⊢ (𝑅 ∈ Field ↔ (𝑅 ∈ DivRing ∧ 𝑅 ∈ CRing)) |
33 | 31, 32 | sylib 217 |
. . . . . . . . 9
⊢ (𝜑 → (𝑅 ∈ DivRing ∧ 𝑅 ∈ CRing)) |
34 | 33 | simpld 494 |
. . . . . . . 8
⊢ (𝜑 → 𝑅 ∈ DivRing) |
35 | | drngring 19913 |
. . . . . . . 8
⊢ (𝑅 ∈ DivRing → 𝑅 ∈ Ring) |
36 | 34, 35 | syl 17 |
. . . . . . 7
⊢ (𝜑 → 𝑅 ∈ Ring) |
37 | 36 | 3ad2ant1 1131 |
. . . . . 6
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → 𝑅 ∈ Ring) |
38 | 5, 28 | ring0cl 19723 |
. . . . . 6
⊢ (𝑅 ∈ Ring → 0 ∈ 𝐵) |
39 | 37, 38 | syl 17 |
. . . . 5
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → 0 ∈ 𝐵) |
40 | | frlmphl.t |
. . . . . . 7
⊢ · =
(.r‘𝑅) |
41 | 5, 40, 28 | ringlz 19741 |
. . . . . 6
⊢ ((𝑅 ∈ Ring ∧ 𝑥 ∈ 𝐵) → ( 0 · 𝑥) = 0 ) |
42 | 37, 41 | sylan 579 |
. . . . 5
⊢ (((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) ∧ 𝑥 ∈ 𝐵) → ( 0 · 𝑥) = 0 ) |
43 | 2, 39, 10, 16, 42 | suppofss1d 7991 |
. . . 4
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → ((𝑔 ∘f · ℎ) supp 0 ) ⊆ (𝑔 supp 0 )) |
44 | | fsuppsssupp 9074 |
. . . . 5
⊢ ((((𝑔 ∘f · ℎ) ∈ V ∧ Fun (𝑔 ∘f · ℎ)) ∧ (𝑔 finSupp 0 ∧ ((𝑔 ∘f · ℎ) supp 0 ) ⊆ (𝑔 supp 0 ))) → (𝑔 ∘f · ℎ) finSupp 0 ) |
45 | 44 | fsuppimpd 9065 |
. . . 4
⊢ ((((𝑔 ∘f · ℎ) ∈ V ∧ Fun (𝑔 ∘f · ℎ)) ∧ (𝑔 finSupp 0 ∧ ((𝑔 ∘f · ℎ) supp 0 ) ⊆ (𝑔 supp 0 ))) → ((𝑔 ∘f · ℎ) supp 0 ) ∈
Fin) |
46 | 23, 27, 30, 43, 45 | syl22anc 835 |
. . 3
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → ((𝑔 ∘f · ℎ) supp 0 ) ∈
Fin) |
47 | 22, 46 | eqeltrrd 2840 |
. 2
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → ((𝑥 ∈ 𝐼 ↦ ((𝑔‘𝑥) · (ℎ‘𝑥))) supp 0 ) ∈
Fin) |
48 | 2 | mptexd 7082 |
. . 3
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → (𝑥 ∈ 𝐼 ↦ ((𝑔‘𝑥) · (ℎ‘𝑥))) ∈ V) |
49 | 39 | elexd 3442 |
. . 3
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → 0 ∈ V) |
50 | | funisfsupp 9063 |
. . 3
⊢ ((Fun
(𝑥 ∈ 𝐼 ↦ ((𝑔‘𝑥) · (ℎ‘𝑥))) ∧ (𝑥 ∈ 𝐼 ↦ ((𝑔‘𝑥) · (ℎ‘𝑥))) ∈ V ∧ 0 ∈ V) → ((𝑥 ∈ 𝐼 ↦ ((𝑔‘𝑥) · (ℎ‘𝑥))) finSupp 0 ↔ ((𝑥 ∈ 𝐼 ↦ ((𝑔‘𝑥) · (ℎ‘𝑥))) supp 0 ) ∈
Fin)) |
51 | 24, 48, 49, 50 | mp3an2i 1464 |
. 2
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → ((𝑥 ∈ 𝐼 ↦ ((𝑔‘𝑥) · (ℎ‘𝑥))) finSupp 0 ↔ ((𝑥 ∈ 𝐼 ↦ ((𝑔‘𝑥) · (ℎ‘𝑥))) supp 0 ) ∈
Fin)) |
52 | 47, 51 | mpbird 256 |
1
⊢ ((𝜑 ∧ 𝑔 ∈ 𝑉 ∧ ℎ ∈ 𝑉) → (𝑥 ∈ 𝐼 ↦ ((𝑔‘𝑥) · (ℎ‘𝑥))) finSupp 0 ) |