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Proofgold Proof
pf
Let x0 of type
ι
be given.
Assume H0:
x0
∈
complex
.
Apply complex_E with
x0
,
x0
=
add_CSNo
(
CSNo_Re
x0
)
(
mul_CSNo
Complex_i
(
CSNo_Im
x0
)
)
leaving 2 subgoals.
The subproof is completed by applying H0.
Let x1 of type
ι
be given.
Assume H1:
x1
∈
real
.
Let x2 of type
ι
be given.
Assume H2:
x2
∈
real
.
Assume H3:
x0
=
SNo_pair
x1
x2
.
Apply H3 with
λ x3 x4 .
x4
=
add_CSNo
(
CSNo_Re
x4
)
(
mul_CSNo
Complex_i
(
CSNo_Im
x4
)
)
.
Apply complex_Re_eq with
x1
,
x2
,
λ x3 x4 .
SNo_pair
x1
x2
=
add_CSNo
x4
(
mul_CSNo
Complex_i
(
CSNo_Im
(
SNo_pair
x1
x2
)
)
)
leaving 3 subgoals.
The subproof is completed by applying H1.
The subproof is completed by applying H2.
Apply complex_Im_eq with
x1
,
x2
,
λ x3 x4 .
SNo_pair
x1
x2
=
add_CSNo
x1
(
mul_CSNo
Complex_i
x4
)
leaving 3 subgoals.
The subproof is completed by applying H1.
The subproof is completed by applying H2.
Apply real_Re_eq with
x1
,
λ x3 x4 .
SNo_pair
x1
x2
=
SNo_pair
(
add_SNo
x4
(
CSNo_Re
(
mul_CSNo
Complex_i
x2
)
)
)
(
add_SNo
(
CSNo_Im
x1
)
(
CSNo_Im
(
mul_CSNo
Complex_i
x2
)
)
)
leaving 2 subgoals.
The subproof is completed by applying H1.
Apply real_Im_eq with
x1
,
λ x3 x4 .
SNo_pair
x1
x2
=
SNo_pair
(
add_SNo
x1
(
CSNo_Re
(
mul_CSNo
Complex_i
x2
)
)
)
(
add_SNo
x4
(
CSNo_Im
(
mul_CSNo
Complex_i
x2
)
)
)
leaving 2 subgoals.
The subproof is completed by applying H1.
Apply real_Re_i_eq with
x2
,
λ x3 x4 .
SNo_pair
x1
x2
=
SNo_pair
(
add_SNo
x1
x4
)
(
add_SNo
0
(
CSNo_Im
(
mul_CSNo
Complex_i
x2
)
)
)
leaving 2 subgoals.
The subproof is completed by applying H2.
Apply real_Im_i_eq with
x2
,
λ x3 x4 .
SNo_pair
x1
x2
=
SNo_pair
(
add_SNo
x1
0
)
(
add_SNo
0
x4
)
leaving 2 subgoals.
The subproof is completed by applying H2.
Apply add_SNo_0R with
x1
,
λ x3 x4 .
SNo_pair
x1
x2
=
SNo_pair
x4
(
add_SNo
0
x2
)
leaving 2 subgoals.
Apply real_SNo with
x1
.
The subproof is completed by applying H1.
Apply add_SNo_0L with
x2
,
λ x3 x4 .
SNo_pair
x1
x2
=
SNo_pair
x1
x4
leaving 2 subgoals.
Apply real_SNo with
x2
.
The subproof is completed by applying H2.
Let x3 of type
ι
→
ι
→
ο
be given.
Assume H4:
x3
(
SNo_pair
x1
x2
)
(
SNo_pair
x1
x2
)
.
The subproof is completed by applying H4.
■