MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  madurid Structured version   Visualization version   GIF version

Theorem madurid 20431
Description: Multiplying a matrix with its adjunct results in the identity matrix multiplied with the determinant of the matrix. See Proposition 4.16 in [Lang] p. 518. (Contributed by Stefan O'Rear, 16-Jul-2018.)
Hypotheses
Ref Expression
madurid.a 𝐴 = (𝑁 Mat 𝑅)
madurid.b 𝐵 = (Base‘𝐴)
madurid.j 𝐽 = (𝑁 maAdju 𝑅)
madurid.d 𝐷 = (𝑁 maDet 𝑅)
madurid.i 1 = (1r𝐴)
madurid.t · = (.r𝐴)
madurid.s = ( ·𝑠𝐴)
Assertion
Ref Expression
madurid ((𝑀𝐵𝑅 ∈ CRing) → (𝑀 · (𝐽𝑀)) = ((𝐷𝑀) 1 ))

Proof of Theorem madurid
Dummy variables 𝑎 𝑏 𝑐 𝑑 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 eqid 2620 . . 3 (𝑅 maMul ⟨𝑁, 𝑁, 𝑁⟩) = (𝑅 maMul ⟨𝑁, 𝑁, 𝑁⟩)
2 eqid 2620 . . 3 (Base‘𝑅) = (Base‘𝑅)
3 eqid 2620 . . 3 (.r𝑅) = (.r𝑅)
4 simpr 477 . . 3 ((𝑀𝐵𝑅 ∈ CRing) → 𝑅 ∈ CRing)
5 madurid.a . . . . . 6 𝐴 = (𝑁 Mat 𝑅)
6 madurid.b . . . . . 6 𝐵 = (Base‘𝐴)
75, 6matrcl 20199 . . . . 5 (𝑀𝐵 → (𝑁 ∈ Fin ∧ 𝑅 ∈ V))
87simpld 475 . . . 4 (𝑀𝐵𝑁 ∈ Fin)
98adantr 481 . . 3 ((𝑀𝐵𝑅 ∈ CRing) → 𝑁 ∈ Fin)
105, 2, 6matbas2i 20209 . . . 4 (𝑀𝐵𝑀 ∈ ((Base‘𝑅) ↑𝑚 (𝑁 × 𝑁)))
1110adantr 481 . . 3 ((𝑀𝐵𝑅 ∈ CRing) → 𝑀 ∈ ((Base‘𝑅) ↑𝑚 (𝑁 × 𝑁)))
12 madurid.j . . . . . . 7 𝐽 = (𝑁 maAdju 𝑅)
135, 12, 6maduf 20428 . . . . . 6 (𝑅 ∈ CRing → 𝐽:𝐵𝐵)
1413adantl 482 . . . . 5 ((𝑀𝐵𝑅 ∈ CRing) → 𝐽:𝐵𝐵)
15 simpl 473 . . . . 5 ((𝑀𝐵𝑅 ∈ CRing) → 𝑀𝐵)
1614, 15ffvelrnd 6346 . . . 4 ((𝑀𝐵𝑅 ∈ CRing) → (𝐽𝑀) ∈ 𝐵)
175, 2, 6matbas2i 20209 . . . 4 ((𝐽𝑀) ∈ 𝐵 → (𝐽𝑀) ∈ ((Base‘𝑅) ↑𝑚 (𝑁 × 𝑁)))
1816, 17syl 17 . . 3 ((𝑀𝐵𝑅 ∈ CRing) → (𝐽𝑀) ∈ ((Base‘𝑅) ↑𝑚 (𝑁 × 𝑁)))
191, 2, 3, 4, 9, 9, 9, 11, 18mamuval 20173 . 2 ((𝑀𝐵𝑅 ∈ CRing) → (𝑀(𝑅 maMul ⟨𝑁, 𝑁, 𝑁⟩)(𝐽𝑀)) = (𝑎𝑁, 𝑏𝑁 ↦ (𝑅 Σg (𝑐𝑁 ↦ ((𝑎𝑀𝑐)(.r𝑅)(𝑐(𝐽𝑀)𝑏))))))
205, 1matmulr 20225 . . . . 5 ((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing) → (𝑅 maMul ⟨𝑁, 𝑁, 𝑁⟩) = (.r𝐴))
218, 20sylan 488 . . . 4 ((𝑀𝐵𝑅 ∈ CRing) → (𝑅 maMul ⟨𝑁, 𝑁, 𝑁⟩) = (.r𝐴))
22 madurid.t . . . 4 · = (.r𝐴)
2321, 22syl6eqr 2672 . . 3 ((𝑀𝐵𝑅 ∈ CRing) → (𝑅 maMul ⟨𝑁, 𝑁, 𝑁⟩) = · )
2423oveqd 6652 . 2 ((𝑀𝐵𝑅 ∈ CRing) → (𝑀(𝑅 maMul ⟨𝑁, 𝑁, 𝑁⟩)(𝐽𝑀)) = (𝑀 · (𝐽𝑀)))
25 madurid.d . . . . . 6 𝐷 = (𝑁 maDet 𝑅)
26 simp1l 1083 . . . . . 6 (((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) → 𝑀𝐵)
27 simp1r 1084 . . . . . 6 (((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) → 𝑅 ∈ CRing)
28 elmapi 7864 . . . . . . . . . 10 (𝑀 ∈ ((Base‘𝑅) ↑𝑚 (𝑁 × 𝑁)) → 𝑀:(𝑁 × 𝑁)⟶(Base‘𝑅))
2911, 28syl 17 . . . . . . . . 9 ((𝑀𝐵𝑅 ∈ CRing) → 𝑀:(𝑁 × 𝑁)⟶(Base‘𝑅))
30293ad2ant1 1080 . . . . . . . 8 (((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) → 𝑀:(𝑁 × 𝑁)⟶(Base‘𝑅))
3130adantr 481 . . . . . . 7 ((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ 𝑐𝑁) → 𝑀:(𝑁 × 𝑁)⟶(Base‘𝑅))
32 simpl2 1063 . . . . . . 7 ((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ 𝑐𝑁) → 𝑎𝑁)
33 simpr 477 . . . . . . 7 ((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ 𝑐𝑁) → 𝑐𝑁)
3431, 32, 33fovrnd 6791 . . . . . 6 ((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ 𝑐𝑁) → (𝑎𝑀𝑐) ∈ (Base‘𝑅))
35 simp3 1061 . . . . . 6 (((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) → 𝑏𝑁)
365, 12, 6, 25, 3, 2, 26, 27, 34, 35madugsum 20430 . . . . 5 (((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) → (𝑅 Σg (𝑐𝑁 ↦ ((𝑎𝑀𝑐)(.r𝑅)(𝑐(𝐽𝑀)𝑏)))) = (𝐷‘(𝑑𝑁, 𝑐𝑁 ↦ if(𝑑 = 𝑏, (𝑎𝑀𝑐), (𝑑𝑀𝑐)))))
37 iftrue 4083 . . . . . . . . 9 (𝑎 = 𝑏 → if(𝑎 = 𝑏, (𝐷𝑀), (0g𝑅)) = (𝐷𝑀))
3837adantl 482 . . . . . . . 8 (((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎 = 𝑏) → if(𝑎 = 𝑏, (𝐷𝑀), (0g𝑅)) = (𝐷𝑀))
39 ffn 6032 . . . . . . . . . . . . 13 (𝑀:(𝑁 × 𝑁)⟶(Base‘𝑅) → 𝑀 Fn (𝑁 × 𝑁))
4029, 39syl 17 . . . . . . . . . . . 12 ((𝑀𝐵𝑅 ∈ CRing) → 𝑀 Fn (𝑁 × 𝑁))
41 fnov 6753 . . . . . . . . . . . 12 (𝑀 Fn (𝑁 × 𝑁) ↔ 𝑀 = (𝑑𝑁, 𝑐𝑁 ↦ (𝑑𝑀𝑐)))
4240, 41sylib 208 . . . . . . . . . . 11 ((𝑀𝐵𝑅 ∈ CRing) → 𝑀 = (𝑑𝑁, 𝑐𝑁 ↦ (𝑑𝑀𝑐)))
4342adantr 481 . . . . . . . . . 10 (((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎 = 𝑏) → 𝑀 = (𝑑𝑁, 𝑐𝑁 ↦ (𝑑𝑀𝑐)))
44 equtr2 1952 . . . . . . . . . . . . . . 15 ((𝑎 = 𝑏𝑑 = 𝑏) → 𝑎 = 𝑑)
4544oveq1d 6650 . . . . . . . . . . . . . 14 ((𝑎 = 𝑏𝑑 = 𝑏) → (𝑎𝑀𝑐) = (𝑑𝑀𝑐))
4645ifeq1da 4107 . . . . . . . . . . . . 13 (𝑎 = 𝑏 → if(𝑑 = 𝑏, (𝑎𝑀𝑐), (𝑑𝑀𝑐)) = if(𝑑 = 𝑏, (𝑑𝑀𝑐), (𝑑𝑀𝑐)))
47 ifid 4116 . . . . . . . . . . . . 13 if(𝑑 = 𝑏, (𝑑𝑀𝑐), (𝑑𝑀𝑐)) = (𝑑𝑀𝑐)
4846, 47syl6eq 2670 . . . . . . . . . . . 12 (𝑎 = 𝑏 → if(𝑑 = 𝑏, (𝑎𝑀𝑐), (𝑑𝑀𝑐)) = (𝑑𝑀𝑐))
4948adantl 482 . . . . . . . . . . 11 (((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎 = 𝑏) → if(𝑑 = 𝑏, (𝑎𝑀𝑐), (𝑑𝑀𝑐)) = (𝑑𝑀𝑐))
5049mpt2eq3dv 6706 . . . . . . . . . 10 (((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎 = 𝑏) → (𝑑𝑁, 𝑐𝑁 ↦ if(𝑑 = 𝑏, (𝑎𝑀𝑐), (𝑑𝑀𝑐))) = (𝑑𝑁, 𝑐𝑁 ↦ (𝑑𝑀𝑐)))
5143, 50eqtr4d 2657 . . . . . . . . 9 (((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎 = 𝑏) → 𝑀 = (𝑑𝑁, 𝑐𝑁 ↦ if(𝑑 = 𝑏, (𝑎𝑀𝑐), (𝑑𝑀𝑐))))
5251fveq2d 6182 . . . . . . . 8 (((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎 = 𝑏) → (𝐷𝑀) = (𝐷‘(𝑑𝑁, 𝑐𝑁 ↦ if(𝑑 = 𝑏, (𝑎𝑀𝑐), (𝑑𝑀𝑐)))))
5338, 52eqtr2d 2655 . . . . . . 7 (((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎 = 𝑏) → (𝐷‘(𝑑𝑁, 𝑐𝑁 ↦ if(𝑑 = 𝑏, (𝑎𝑀𝑐), (𝑑𝑀𝑐)))) = if(𝑎 = 𝑏, (𝐷𝑀), (0g𝑅)))
54533ad2antl1 1221 . . . . . 6 ((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ 𝑎 = 𝑏) → (𝐷‘(𝑑𝑁, 𝑐𝑁 ↦ if(𝑑 = 𝑏, (𝑎𝑀𝑐), (𝑑𝑀𝑐)))) = if(𝑎 = 𝑏, (𝐷𝑀), (0g𝑅)))
55 eqid 2620 . . . . . . . 8 (0g𝑅) = (0g𝑅)
56 simpl1r 1111 . . . . . . . 8 ((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) → 𝑅 ∈ CRing)
5793ad2ant1 1080 . . . . . . . . 9 (((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) → 𝑁 ∈ Fin)
5857adantr 481 . . . . . . . 8 ((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) → 𝑁 ∈ Fin)
5930ad2antrr 761 . . . . . . . . 9 (((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) ∧ 𝑐𝑁) → 𝑀:(𝑁 × 𝑁)⟶(Base‘𝑅))
60 simpll2 1099 . . . . . . . . 9 (((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) ∧ 𝑐𝑁) → 𝑎𝑁)
61 simpr 477 . . . . . . . . 9 (((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) ∧ 𝑐𝑁) → 𝑐𝑁)
6259, 60, 61fovrnd 6791 . . . . . . . 8 (((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) ∧ 𝑐𝑁) → (𝑎𝑀𝑐) ∈ (Base‘𝑅))
6330adantr 481 . . . . . . . . . 10 ((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) → 𝑀:(𝑁 × 𝑁)⟶(Base‘𝑅))
6463fovrnda 6790 . . . . . . . . 9 (((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) ∧ (𝑑𝑁𝑐𝑁)) → (𝑑𝑀𝑐) ∈ (Base‘𝑅))
65643impb 1258 . . . . . . . 8 (((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) ∧ 𝑑𝑁𝑐𝑁) → (𝑑𝑀𝑐) ∈ (Base‘𝑅))
66 simpl3 1064 . . . . . . . 8 ((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) → 𝑏𝑁)
67 simpl2 1063 . . . . . . . 8 ((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) → 𝑎𝑁)
68 df-ne 2792 . . . . . . . . . . 11 (𝑎𝑏 ↔ ¬ 𝑎 = 𝑏)
6968biimpri 218 . . . . . . . . . 10 𝑎 = 𝑏𝑎𝑏)
7069necomd 2846 . . . . . . . . 9 𝑎 = 𝑏𝑏𝑎)
7170adantl 482 . . . . . . . 8 ((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) → 𝑏𝑎)
7225, 2, 55, 56, 58, 62, 65, 66, 67, 71mdetralt2 20396 . . . . . . 7 ((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) → (𝐷‘(𝑑𝑁, 𝑐𝑁 ↦ if(𝑑 = 𝑏, (𝑎𝑀𝑐), if(𝑑 = 𝑎, (𝑎𝑀𝑐), (𝑑𝑀𝑐))))) = (0g𝑅))
73 ifid 4116 . . . . . . . . . . 11 if(𝑑 = 𝑎, (𝑑𝑀𝑐), (𝑑𝑀𝑐)) = (𝑑𝑀𝑐)
74 oveq1 6642 . . . . . . . . . . . . 13 (𝑑 = 𝑎 → (𝑑𝑀𝑐) = (𝑎𝑀𝑐))
7574adantl 482 . . . . . . . . . . . 12 (((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) ∧ 𝑑 = 𝑎) → (𝑑𝑀𝑐) = (𝑎𝑀𝑐))
7675ifeq1da 4107 . . . . . . . . . . 11 ((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) → if(𝑑 = 𝑎, (𝑑𝑀𝑐), (𝑑𝑀𝑐)) = if(𝑑 = 𝑎, (𝑎𝑀𝑐), (𝑑𝑀𝑐)))
7773, 76syl5eqr 2668 . . . . . . . . . 10 ((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) → (𝑑𝑀𝑐) = if(𝑑 = 𝑎, (𝑎𝑀𝑐), (𝑑𝑀𝑐)))
7877ifeq2d 4096 . . . . . . . . 9 ((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) → if(𝑑 = 𝑏, (𝑎𝑀𝑐), (𝑑𝑀𝑐)) = if(𝑑 = 𝑏, (𝑎𝑀𝑐), if(𝑑 = 𝑎, (𝑎𝑀𝑐), (𝑑𝑀𝑐))))
7978mpt2eq3dv 6706 . . . . . . . 8 ((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) → (𝑑𝑁, 𝑐𝑁 ↦ if(𝑑 = 𝑏, (𝑎𝑀𝑐), (𝑑𝑀𝑐))) = (𝑑𝑁, 𝑐𝑁 ↦ if(𝑑 = 𝑏, (𝑎𝑀𝑐), if(𝑑 = 𝑎, (𝑎𝑀𝑐), (𝑑𝑀𝑐)))))
8079fveq2d 6182 . . . . . . 7 ((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) → (𝐷‘(𝑑𝑁, 𝑐𝑁 ↦ if(𝑑 = 𝑏, (𝑎𝑀𝑐), (𝑑𝑀𝑐)))) = (𝐷‘(𝑑𝑁, 𝑐𝑁 ↦ if(𝑑 = 𝑏, (𝑎𝑀𝑐), if(𝑑 = 𝑎, (𝑎𝑀𝑐), (𝑑𝑀𝑐))))))
81 iffalse 4086 . . . . . . . 8 𝑎 = 𝑏 → if(𝑎 = 𝑏, (𝐷𝑀), (0g𝑅)) = (0g𝑅))
8281adantl 482 . . . . . . 7 ((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) → if(𝑎 = 𝑏, (𝐷𝑀), (0g𝑅)) = (0g𝑅))
8372, 80, 823eqtr4d 2664 . . . . . 6 ((((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) ∧ ¬ 𝑎 = 𝑏) → (𝐷‘(𝑑𝑁, 𝑐𝑁 ↦ if(𝑑 = 𝑏, (𝑎𝑀𝑐), (𝑑𝑀𝑐)))) = if(𝑎 = 𝑏, (𝐷𝑀), (0g𝑅)))
8454, 83pm2.61dan 831 . . . . 5 (((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) → (𝐷‘(𝑑𝑁, 𝑐𝑁 ↦ if(𝑑 = 𝑏, (𝑎𝑀𝑐), (𝑑𝑀𝑐)))) = if(𝑎 = 𝑏, (𝐷𝑀), (0g𝑅)))
8536, 84eqtrd 2654 . . . 4 (((𝑀𝐵𝑅 ∈ CRing) ∧ 𝑎𝑁𝑏𝑁) → (𝑅 Σg (𝑐𝑁 ↦ ((𝑎𝑀𝑐)(.r𝑅)(𝑐(𝐽𝑀)𝑏)))) = if(𝑎 = 𝑏, (𝐷𝑀), (0g𝑅)))
8685mpt2eq3dva 6704 . . 3 ((𝑀𝐵𝑅 ∈ CRing) → (𝑎𝑁, 𝑏𝑁 ↦ (𝑅 Σg (𝑐𝑁 ↦ ((𝑎𝑀𝑐)(.r𝑅)(𝑐(𝐽𝑀)𝑏))))) = (𝑎𝑁, 𝑏𝑁 ↦ if(𝑎 = 𝑏, (𝐷𝑀), (0g𝑅))))
87 madurid.i . . . . 5 1 = (1r𝐴)
8887oveq2i 6646 . . . 4 ((𝐷𝑀) 1 ) = ((𝐷𝑀) (1r𝐴))
89 crngring 18539 . . . . . 6 (𝑅 ∈ CRing → 𝑅 ∈ Ring)
9089adantl 482 . . . . 5 ((𝑀𝐵𝑅 ∈ CRing) → 𝑅 ∈ Ring)
9125, 5, 6, 2mdetf 20382 . . . . . . 7 (𝑅 ∈ CRing → 𝐷:𝐵⟶(Base‘𝑅))
9291adantl 482 . . . . . 6 ((𝑀𝐵𝑅 ∈ CRing) → 𝐷:𝐵⟶(Base‘𝑅))
9392, 15ffvelrnd 6346 . . . . 5 ((𝑀𝐵𝑅 ∈ CRing) → (𝐷𝑀) ∈ (Base‘𝑅))
94 madurid.s . . . . . 6 = ( ·𝑠𝐴)
955, 2, 94, 55matsc 20237 . . . . 5 ((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring ∧ (𝐷𝑀) ∈ (Base‘𝑅)) → ((𝐷𝑀) (1r𝐴)) = (𝑎𝑁, 𝑏𝑁 ↦ if(𝑎 = 𝑏, (𝐷𝑀), (0g𝑅))))
969, 90, 93, 95syl3anc 1324 . . . 4 ((𝑀𝐵𝑅 ∈ CRing) → ((𝐷𝑀) (1r𝐴)) = (𝑎𝑁, 𝑏𝑁 ↦ if(𝑎 = 𝑏, (𝐷𝑀), (0g𝑅))))
9788, 96syl5eq 2666 . . 3 ((𝑀𝐵𝑅 ∈ CRing) → ((𝐷𝑀) 1 ) = (𝑎𝑁, 𝑏𝑁 ↦ if(𝑎 = 𝑏, (𝐷𝑀), (0g𝑅))))
9886, 97eqtr4d 2657 . 2 ((𝑀𝐵𝑅 ∈ CRing) → (𝑎𝑁, 𝑏𝑁 ↦ (𝑅 Σg (𝑐𝑁 ↦ ((𝑎𝑀𝑐)(.r𝑅)(𝑐(𝐽𝑀)𝑏))))) = ((𝐷𝑀) 1 ))
9919, 24, 983eqtr3d 2662 1 ((𝑀𝐵𝑅 ∈ CRing) → (𝑀 · (𝐽𝑀)) = ((𝐷𝑀) 1 ))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wa 384  w3a 1036   = wceq 1481  wcel 1988  wne 2791  Vcvv 3195  ifcif 4077  cotp 4176  cmpt 4720   × cxp 5102   Fn wfn 5871  wf 5872  cfv 5876  (class class class)co 6635  cmpt2 6637  𝑚 cmap 7842  Fincfn 7940  Basecbs 15838  .rcmulr 15923   ·𝑠 cvsca 15926  0gc0g 16081   Σg cgsu 16082  1rcur 18482  Ringcrg 18528  CRingccrg 18529   maMul cmmul 20170   Mat cmat 20194   maDet cmdat 20371   maAdju cmadu 20419
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1720  ax-4 1735  ax-5 1837  ax-6 1886  ax-7 1933  ax-8 1990  ax-9 1997  ax-10 2017  ax-11 2032  ax-12 2045  ax-13 2244  ax-ext 2600  ax-rep 4762  ax-sep 4772  ax-nul 4780  ax-pow 4834  ax-pr 4897  ax-un 6934  ax-inf2 8523  ax-cnex 9977  ax-resscn 9978  ax-1cn 9979  ax-icn 9980  ax-addcl 9981  ax-addrcl 9982  ax-mulcl 9983  ax-mulrcl 9984  ax-mulcom 9985  ax-addass 9986  ax-mulass 9987  ax-distr 9988  ax-i2m1 9989  ax-1ne0 9990  ax-1rid 9991  ax-rnegex 9992  ax-rrecex 9993  ax-cnre 9994  ax-pre-lttri 9995  ax-pre-lttrn 9996  ax-pre-ltadd 9997  ax-pre-mulgt0 9998  ax-addf 10000  ax-mulf 10001
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1037  df-3an 1038  df-xor 1463  df-tru 1484  df-fal 1487  df-ex 1703  df-nf 1708  df-sb 1879  df-eu 2472  df-mo 2473  df-clab 2607  df-cleq 2613  df-clel 2616  df-nfc 2751  df-ne 2792  df-nel 2895  df-ral 2914  df-rex 2915  df-reu 2916  df-rmo 2917  df-rab 2918  df-v 3197  df-sbc 3430  df-csb 3527  df-dif 3570  df-un 3572  df-in 3574  df-ss 3581  df-pss 3583  df-nul 3908  df-if 4078  df-pw 4151  df-sn 4169  df-pr 4171  df-tp 4173  df-op 4175  df-ot 4177  df-uni 4428  df-int 4467  df-iun 4513  df-iin 4514  df-br 4645  df-opab 4704  df-mpt 4721  df-tr 4744  df-id 5014  df-eprel 5019  df-po 5025  df-so 5026  df-fr 5063  df-se 5064  df-we 5065  df-xp 5110  df-rel 5111  df-cnv 5112  df-co 5113  df-dm 5114  df-rn 5115  df-res 5116  df-ima 5117  df-pred 5668  df-ord 5714  df-on 5715  df-lim 5716  df-suc 5717  df-iota 5839  df-fun 5878  df-fn 5879  df-f 5880  df-f1 5881  df-fo 5882  df-f1o 5883  df-fv 5884  df-isom 5885  df-riota 6596  df-ov 6638  df-oprab 6639  df-mpt2 6640  df-of 6882  df-om 7051  df-1st 7153  df-2nd 7154  df-supp 7281  df-tpos 7337  df-wrecs 7392  df-recs 7453  df-rdg 7491  df-1o 7545  df-2o 7546  df-oadd 7549  df-er 7727  df-map 7844  df-pm 7845  df-ixp 7894  df-en 7941  df-dom 7942  df-sdom 7943  df-fin 7944  df-fsupp 8261  df-sup 8333  df-oi 8400  df-card 8750  df-pnf 10061  df-mnf 10062  df-xr 10063  df-ltxr 10064  df-le 10065  df-sub 10253  df-neg 10254  df-div 10670  df-nn 11006  df-2 11064  df-3 11065  df-4 11066  df-5 11067  df-6 11068  df-7 11069  df-8 11070  df-9 11071  df-n0 11278  df-xnn0 11349  df-z 11363  df-dec 11479  df-uz 11673  df-rp 11818  df-fz 12312  df-fzo 12450  df-seq 12785  df-exp 12844  df-hash 13101  df-word 13282  df-lsw 13283  df-concat 13284  df-s1 13285  df-substr 13286  df-splice 13287  df-reverse 13288  df-s2 13574  df-struct 15840  df-ndx 15841  df-slot 15842  df-base 15844  df-sets 15845  df-ress 15846  df-plusg 15935  df-mulr 15936  df-starv 15937  df-sca 15938  df-vsca 15939  df-ip 15940  df-tset 15941  df-ple 15942  df-ds 15945  df-unif 15946  df-hom 15947  df-cco 15948  df-0g 16083  df-gsum 16084  df-prds 16089  df-pws 16091  df-mre 16227  df-mrc 16228  df-acs 16230  df-mgm 17223  df-sgrp 17265  df-mnd 17276  df-mhm 17316  df-submnd 17317  df-grp 17406  df-minusg 17407  df-sbg 17408  df-mulg 17522  df-subg 17572  df-ghm 17639  df-gim 17682  df-cntz 17731  df-oppg 17757  df-symg 17779  df-pmtr 17843  df-psgn 17892  df-evpm 17893  df-cmn 18176  df-abl 18177  df-mgp 18471  df-ur 18483  df-ring 18530  df-cring 18531  df-oppr 18604  df-dvdsr 18622  df-unit 18623  df-invr 18653  df-dvr 18664  df-rnghom 18696  df-drng 18730  df-subrg 18759  df-lmod 18846  df-lss 18914  df-sra 19153  df-rgmod 19154  df-cnfld 19728  df-zring 19800  df-zrh 19833  df-dsmm 20057  df-frlm 20072  df-mamu 20171  df-mat 20195  df-mdet 20372  df-madu 20421
This theorem is referenced by:  madulid  20432  matinv  20464  cpmadurid  20653  cpmidgsum2  20665
  Copyright terms: Public domain W3C validator