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Theorem setconslem2 4732
 Description: Lemma for the set construction theorems. (Contributed by SF, 6-Jan-2015.)
Hypotheses
Ref Expression
setconslem1.1 A V
setconslem1.2 B V
Assertion
Ref Expression
setconslem2 (⟪{A}, B (( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c)) “k 111c) ↔ x B A = ( Phi x ∪ {0c}))
Distinct variable groups:   x,A   x,B

Proof of Theorem setconslem2
Dummy variables y z t are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 elpw121c 4148 . . . . . . 7 (t 111cx t = {{{x}}})
21anbi1i 676 . . . . . 6 ((t 111c t, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))) ↔ (x t = {{{x}}} t, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))))
3 19.41v 1901 . . . . . 6 (x(t = {{{x}}} t, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))) ↔ (x t = {{{x}}} t, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))))
42, 3bitr4i 243 . . . . 5 ((t 111c t, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))) ↔ x(t = {{{x}}} t, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))))
54exbii 1582 . . . 4 (t(t 111c t, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))) ↔ tx(t = {{{x}}} t, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))))
6 df-rex 2620 . . . 4 (t 1 11ct, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c)) ↔ t(t 111c t, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))))
7 excom 1741 . . . 4 (xt(t = {{{x}}} t, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))) ↔ tx(t = {{{x}}} t, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))))
85, 6, 73bitr4i 268 . . 3 (t 1 11ct, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c)) ↔ xt(t = {{{x}}} t, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))))
9 snex 4111 . . . . . 6 {{{x}}} V
10 opkeq1 4059 . . . . . . 7 (t = {{{x}}} → ⟪t, ⟪{A}, B⟫⟫ = ⟪{{{x}}}, ⟪{A}, B⟫⟫)
1110eleq1d 2419 . . . . . 6 (t = {{{x}}} → (⟪t, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c)) ↔ ⟪{{{x}}}, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))))
129, 11ceqsexv 2894 . . . . 5 (t(t = {{{x}}} t, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))) ↔ ⟪{{{x}}}, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c)))
13 elin 3219 . . . . 5 (⟪{{{x}}}, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c)) ↔ (⟪{{{x}}}, ⟪{A}, B⟫⟫ Ins2k Sk ⟪{{{x}}}, ⟪{A}, B⟫⟫ Ins3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c)))
14 snex 4111 . . . . . . . 8 {x} V
15 snex 4111 . . . . . . . 8 {A} V
16 setconslem1.2 . . . . . . . 8 B V
1714, 15, 16otkelins2k 4255 . . . . . . 7 (⟪{{{x}}}, ⟪{A}, B⟫⟫ Ins2k Sk ↔ ⟪{x}, B Sk )
18 vex 2862 . . . . . . . 8 x V
1918, 16elssetk 4270 . . . . . . 7 (⟪{x}, B Skx B)
2017, 19bitri 240 . . . . . 6 (⟪{{{x}}}, ⟪{A}, B⟫⟫ Ins2k Skx B)
2114, 15, 16otkelins3k 4256 . . . . . . 7 (⟪{{{x}}}, ⟪{A}, B⟫⟫ Ins3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c) ↔ ⟪{x}, {A}⟫ SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))
22 setconslem1.1 . . . . . . . 8 A V
2318, 22opksnelsik 4265 . . . . . . 7 (⟪{x}, {A}⟫ SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c) ↔ ⟪x, A ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))
24 opkex 4113 . . . . . . . . . . . 12 x, A V
2524elimak 4259 . . . . . . . . . . 11 (⟪x, A (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c) ↔ t 1 11ct, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))))
26 elpw121c 4148 . . . . . . . . . . . . . . 15 (t 111cy t = {{{y}}})
2726anbi1i 676 . . . . . . . . . . . . . 14 ((t 111c t, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)))) ↔ (y t = {{{y}}} t, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)))))
28 19.41v 1901 . . . . . . . . . . . . . 14 (y(t = {{{y}}} t, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)))) ↔ (y t = {{{y}}} t, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)))))
2927, 28bitr4i 243 . . . . . . . . . . . . 13 ((t 111c t, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)))) ↔ y(t = {{{y}}} t, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)))))
3029exbii 1582 . . . . . . . . . . . 12 (t(t 111c t, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)))) ↔ ty(t = {{{y}}} t, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)))))
31 df-rex 2620 . . . . . . . . . . . 12 (t 1 11ct, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) ↔ t(t 111c t, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)))))
32 excom 1741 . . . . . . . . . . . 12 (yt(t = {{{y}}} t, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)))) ↔ ty(t = {{{y}}} t, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)))))
3330, 31, 323bitr4i 268 . . . . . . . . . . 11 (t 1 11ct, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) ↔ yt(t = {{{y}}} t, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)))))
3425, 33bitri 240 . . . . . . . . . 10 (⟪x, A (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c) ↔ yt(t = {{{y}}} t, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)))))
35 snex 4111 . . . . . . . . . . . . 13 {{{y}}} V
36 opkeq1 4059 . . . . . . . . . . . . . 14 (t = {{{y}}} → ⟪t, ⟪x, A⟫⟫ = ⟪{{{y}}}, ⟪x, A⟫⟫)
3736eleq1d 2419 . . . . . . . . . . . . 13 (t = {{{y}}} → (⟪t, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) ↔ ⟪{{{y}}}, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)))))
3835, 37ceqsexv 2894 . . . . . . . . . . . 12 (t(t = {{{y}}} t, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)))) ↔ ⟪{{{y}}}, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))))
39 elsymdif 3223 . . . . . . . . . . . . 13 (⟪{{{y}}}, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) ↔ ¬ (⟪{{{y}}}, ⟪x, A⟫⟫ Ins2k Sk ↔ ⟪{{{y}}}, ⟪x, A⟫⟫ Ins3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))))
40 snex 4111 . . . . . . . . . . . . . . . 16 {y} V
4140, 18, 22otkelins2k 4255 . . . . . . . . . . . . . . 15 (⟪{{{y}}}, ⟪x, A⟫⟫ Ins2k Sk ↔ ⟪{y}, A Sk )
42 vex 2862 . . . . . . . . . . . . . . . 16 y V
4342, 22elssetk 4270 . . . . . . . . . . . . . . 15 (⟪{y}, A Sky A)
4441, 43bitri 240 . . . . . . . . . . . . . 14 (⟪{{{y}}}, ⟪x, A⟫⟫ Ins2k Sky A)
4540, 18, 22otkelins3k 4256 . . . . . . . . . . . . . . 15 (⟪{{{y}}}, ⟪x, A⟫⟫ Ins3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)) ↔ ⟪{y}, x ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)))
46 vex 2862 . . . . . . . . . . . . . . . . . . . . . 22 z V
4742, 46elssetk 4270 . . . . . . . . . . . . . . . . . . . . 21 (⟪{y}, z Sky z)
4818, 46opkelimagek 4272 . . . . . . . . . . . . . . . . . . . . . 22 (⟪x, z Imagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) ↔ z = (((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) “k x))
4946, 18opkelcnvk 4250 . . . . . . . . . . . . . . . . . . . . . 22 (⟪z, x kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) ↔ ⟪x, z Imagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))))
50 dfphi2 4569 . . . . . . . . . . . . . . . . . . . . . . 23 Phi x = (((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) “k x)
5150eqeq2i 2363 . . . . . . . . . . . . . . . . . . . . . 22 (z = Phi xz = (((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) “k x))
5248, 49, 513bitr4i 268 . . . . . . . . . . . . . . . . . . . . 21 (⟪z, x kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) ↔ z = Phi x)
5347, 52anbi12i 678 . . . . . . . . . . . . . . . . . . . 20 ((⟪{y}, z Sk z, x kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V)))) ↔ (y z z = Phi x))
54 ancom 437 . . . . . . . . . . . . . . . . . . . 20 ((y z z = Phi x) ↔ (z = Phi x y z))
5553, 54bitri 240 . . . . . . . . . . . . . . . . . . 19 ((⟪{y}, z Sk z, x kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V)))) ↔ (z = Phi x y z))
5655exbii 1582 . . . . . . . . . . . . . . . . . 18 (z(⟪{y}, z Sk z, x kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V)))) ↔ z(z = Phi x y z))
5740, 18opkelcok 4262 . . . . . . . . . . . . . . . . . 18 (⟪{y}, x (kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ↔ z(⟪{y}, z Sk z, x kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V)))))
5818phiex 4572 . . . . . . . . . . . . . . . . . . 19 Phi x V
5958clel3 2977 . . . . . . . . . . . . . . . . . 18 (y Phi xz(z = Phi x y z))
6056, 57, 593bitr4i 268 . . . . . . . . . . . . . . . . 17 (⟪{y}, x (kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ↔ y Phi x)
6140, 18opkelxpk 4248 . . . . . . . . . . . . . . . . . . 19 (⟪{y}, x ({{0c}} ×k V) ↔ ({y} {{0c}} x V))
6218, 61mpbiran2 885 . . . . . . . . . . . . . . . . . 18 (⟪{y}, x ({{0c}} ×k V) ↔ {y} {{0c}})
6342sneqb 3876 . . . . . . . . . . . . . . . . . . 19 ({y} = {0c} ↔ y = 0c)
6440elsnc 3756 . . . . . . . . . . . . . . . . . . 19 ({y} {{0c}} ↔ {y} = {0c})
6542elsnc 3756 . . . . . . . . . . . . . . . . . . 19 (y {0c} ↔ y = 0c)
6663, 64, 653bitr4i 268 . . . . . . . . . . . . . . . . . 18 ({y} {{0c}} ↔ y {0c})
6762, 66bitri 240 . . . . . . . . . . . . . . . . 17 (⟪{y}, x ({{0c}} ×k V) ↔ y {0c})
6860, 67orbi12i 507 . . . . . . . . . . . . . . . 16 ((⟪{y}, x (kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ⟪{y}, x ({{0c}} ×k V)) ↔ (y Phi x y {0c}))
69 elun 3220 . . . . . . . . . . . . . . . 16 (⟪{y}, x ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)) ↔ (⟪{y}, x (kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ⟪{y}, x ({{0c}} ×k V)))
70 elun 3220 . . . . . . . . . . . . . . . 16 (y ( Phi x ∪ {0c}) ↔ (y Phi x y {0c}))
7168, 69, 703bitr4i 268 . . . . . . . . . . . . . . 15 (⟪{y}, x ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)) ↔ y ( Phi x ∪ {0c}))
7245, 71bitri 240 . . . . . . . . . . . . . 14 (⟪{{{y}}}, ⟪x, A⟫⟫ Ins3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)) ↔ y ( Phi x ∪ {0c}))
7344, 72bibi12i 306 . . . . . . . . . . . . 13 ((⟪{{{y}}}, ⟪x, A⟫⟫ Ins2k Sk ↔ ⟪{{{y}}}, ⟪x, A⟫⟫ Ins3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) ↔ (y Ay ( Phi x ∪ {0c})))
7439, 73xchbinx 301 . . . . . . . . . . . 12 (⟪{{{y}}}, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) ↔ ¬ (y Ay ( Phi x ∪ {0c})))
7538, 74bitri 240 . . . . . . . . . . 11 (t(t = {{{y}}} t, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)))) ↔ ¬ (y Ay ( Phi x ∪ {0c})))
7675exbii 1582 . . . . . . . . . 10 (yt(t = {{{y}}} t, ⟪x, A⟫⟫ ( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V)))) ↔ y ¬ (y Ay ( Phi x ∪ {0c})))
77 exnal 1574 . . . . . . . . . 10 (y ¬ (y Ay ( Phi x ∪ {0c})) ↔ ¬ y(y Ay ( Phi x ∪ {0c})))
7834, 76, 773bitri 262 . . . . . . . . 9 (⟪x, A (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c) ↔ ¬ y(y Ay ( Phi x ∪ {0c})))
7978con2bii 322 . . . . . . . 8 (y(y Ay ( Phi x ∪ {0c})) ↔ ¬ ⟪x, A (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))
80 dfcleq 2347 . . . . . . . 8 (A = ( Phi x ∪ {0c}) ↔ y(y Ay ( Phi x ∪ {0c})))
8124elcompl 3225 . . . . . . . 8 (⟪x, A ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c) ↔ ¬ ⟪x, A (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))
8279, 80, 813bitr4ri 269 . . . . . . 7 (⟪x, A ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c) ↔ A = ( Phi x ∪ {0c}))
8321, 23, 823bitri 262 . . . . . 6 (⟪{{{x}}}, ⟪{A}, B⟫⟫ Ins3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c) ↔ A = ( Phi x ∪ {0c}))
8420, 83anbi12i 678 . . . . 5 ((⟪{{{x}}}, ⟪{A}, B⟫⟫ Ins2k Sk ⟪{{{x}}}, ⟪{A}, B⟫⟫ Ins3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c)) ↔ (x B A = ( Phi x ∪ {0c})))
8512, 13, 843bitri 262 . . . 4 (t(t = {{{x}}} t, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))) ↔ (x B A = ( Phi x ∪ {0c})))
8685exbii 1582 . . 3 (xt(t = {{{x}}} t, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c))) ↔ x(x B A = ( Phi x ∪ {0c})))
878, 86bitri 240 . 2 (t 1 11ct, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c)) ↔ x(x B A = ( Phi x ∪ {0c})))
88 opkex 4113 . . 3 ⟪{A}, B V
8988elimak 4259 . 2 (⟪{A}, B (( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c)) “k 111c) ↔ t 1 11ct, ⟪{A}, B⟫⟫ ( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c)))
90 df-rex 2620 . 2 (x B A = ( Phi x ∪ {0c}) ↔ x(x B A = ( Phi x ∪ {0c})))
9187, 89, 903bitr4i 268 1 (⟪{A}, B (( Ins2k SkIns3k SIk ∼ (( Ins2k SkIns3k ((kImagek((Imagek(( Ins3k ∼ (( Ins3k SkIns2k Sk ) “k 111c) (( Ins2k Ins2k Sk ⊕ ( Ins2k Ins3k SkIns3k SIk SIk Sk )) “k 11111c)) “k 111c) ∩ ( Nn ×k V)) ∪ ( Ik ∩ ( ∼ Nn ×k V))) k Sk ) ∪ ({{0c}} ×k V))) “k 111c)) “k 111c) ↔ x B A = ( Phi x ∪ {0c}))
 Colors of variables: wff setvar class Syntax hints:  ¬ wn 3   ↔ wb 176   ∨ wo 357   ∧ wa 358  ∀wal 1540  ∃wex 1541   = wceq 1642   ∈ wcel 1710  ∃wrex 2615  Vcvv 2859   ∼ ccompl 3205   ∖ cdif 3206   ∪ cun 3207   ∩ cin 3208   ⊕ csymdif 3209  {csn 3737  ⟪copk 4057  1cc1c 4134  ℘1cpw1 4135   ×k cxpk 4174  ◡kccnvk 4175   Ins2k cins2k 4176   Ins3k cins3k 4177   “k cimak 4179   ∘k ccomk 4180   SIk csik 4181  Imagekcimagek 4182   Sk cssetk 4183   Ik cidk 4184   Nn cnnc 4373  0cc0c 4374   Phi cphi 4562 This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1546  ax-5 1557  ax-17 1616  ax-9 1654  ax-8 1675  ax-6 1729  ax-7 1734  ax-11 1746  ax-12 1925  ax-ext 2334  ax-nin 4078  ax-xp 4079  ax-cnv 4080  ax-1c 4081  ax-sset 4082  ax-si 4083  ax-ins2 4084  ax-ins3 4085  ax-typlower 4086  ax-sn 4087 This theorem depends on definitions:  df-bi 177  df-or 359  df-an 360  df-3an 936  df-nan 1288  df-tru 1319  df-ex 1542  df-nf 1545  df-sb 1649  df-clab 2340  df-cleq 2346  df-clel 2349  df-nfc 2478  df-ne 2518  df-ral 2619  df-rex 2620  df-v 2861  df-sbc 3047  df-nin 3211  df-compl 3212  df-in 3213  df-un 3214  df-dif 3215  df-symdif 3216  df-ss 3259  df-nul 3551  df-if 3663  df-pw 3724  df-sn 3741  df-pr 3742  df-uni 3892  df-int 3927  df-opk 4058  df-1c 4136  df-pw1 4137  df-uni1 4138  df-xpk 4185  df-cnvk 4186  df-ins2k 4187  df-ins3k 4188  df-imak 4189  df-cok 4190  df-p6 4191  df-sik 4192  df-ssetk 4193  df-imagek 4194  df-idk 4195  df-addc 4378  df-nnc 4379  df-phi 4565 This theorem is referenced by:  setconslem3  4733  setconslem7  4737  dfswap2  4741
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