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Expression of type Equals

from the theory of proveit.physics.quantum.QPE

In [1]:
import proveit
# Automation is not needed when building an expression:
proveit.defaults.automation = False # This will speed things up.
proveit.defaults.inline_pngs = False # Makes files smaller.
%load_expr # Load the stored expression as 'stored_expr'
# import Expression classes needed to build the expression
from proveit import k, m
from proveit.logic import Equals
from proveit.numbers import Exp, Mult, Neg, Sum, e, frac, i, one, pi, two
from proveit.physics.quantum.QPE import _m_domain, _phase, _t, _two_pow_t
In [2]:
# build up the expression from sub-expressions
sub_expr1 = [k]
sub_expr2 = Exp(e, Mult(two, pi, i, _phase, k))
sub_expr3 = frac(one, Exp(two, frac(_t, two)))
sub_expr4 = Exp(e, Neg(frac(Mult(two, pi, i, k, m), _two_pow_t)))
expr = Equals(Sum(index_or_indices = sub_expr1, summand = Mult(sub_expr2, Mult(sub_expr3, sub_expr4)), domain = _m_domain), Sum(index_or_indices = sub_expr1, summand = Mult(sub_expr2, sub_expr3, sub_expr4), domain = _m_domain))
expr:
In [3]:
# check that the built expression is the same as the stored expression
assert expr == stored_expr
assert expr._style_id == stored_expr._style_id
print("Passed sanity check: expr matches stored_expr")
Passed sanity check: expr matches stored_expr
In [4]:
# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())
\left(\sum_{k = 0}^{2^{t} - 1} \left(\mathsf{e}^{2 \cdot \pi \cdot \mathsf{i} \cdot \varphi \cdot k} \cdot \left(\frac{1}{2^{\frac{t}{2}}} \cdot \mathsf{e}^{-\frac{2 \cdot \pi \cdot \mathsf{i} \cdot k \cdot m}{2^{t}}}\right)\right)\right) = \left(\sum_{k = 0}^{2^{t} - 1} \left(\mathsf{e}^{2 \cdot \pi \cdot \mathsf{i} \cdot \varphi \cdot k} \cdot \frac{1}{2^{\frac{t}{2}}} \cdot \mathsf{e}^{-\frac{2 \cdot \pi \cdot \mathsf{i} \cdot k \cdot m}{2^{t}}}\right)\right)
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
operation'infix' or 'function' style formattinginfixinfix
wrap_positionsposition(s) at which wrapping is to occur; '2 n - 1' is after the nth operand, '2 n' is after the nth operation.()()('with_wrapping_at', 'with_wrap_before_operator', 'with_wrap_after_operator', 'without_wrapping', 'wrap_positions')
justificationif any wrap positions are set, justify to the 'left', 'center', or 'right'centercenter('with_justification',)
directionDirection of the relation (normal or reversed)normalnormal('with_direction_reversed', 'is_reversed')
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 1
operands: 2
1Literal
2ExprTuple3, 4
3Operationoperator: 6
operand: 8
4Operationoperator: 6
operand: 9
5ExprTuple8
6Literal
7ExprTuple9
8Lambdaparameter: 60
body: 10
9Lambdaparameter: 60
body: 12
10Conditionalvalue: 13
condition: 15
11ExprTuple60
12Conditionalvalue: 14
condition: 15
13Operationoperator: 54
operands: 16
14Operationoperator: 54
operands: 17
15Operationoperator: 18
operands: 19
16ExprTuple21, 20
17ExprTuple21, 27, 28
18Literal
19ExprTuple60, 22
20Operationoperator: 54
operands: 23
21Operationoperator: 56
operands: 24
22Operationoperator: 25
operands: 26
23ExprTuple27, 28
24ExprTuple38, 29
25Literal
26ExprTuple30, 31
27Operationoperator: 50
operands: 32
28Operationoperator: 56
operands: 33
29Operationoperator: 54
operands: 34
30Literal
31Operationoperator: 35
operands: 36
32ExprTuple48, 37
33ExprTuple38, 39
34ExprTuple62, 58, 59, 40, 60
35Literal
36ExprTuple53, 41
37Operationoperator: 56
operands: 42
38Literal
39Operationoperator: 44
operand: 47
40Literal
41Operationoperator: 44
operand: 48
42ExprTuple62, 46
43ExprTuple47
44Literal
45ExprTuple48
46Operationoperator: 50
operands: 49
47Operationoperator: 50
operands: 51
48Literal
49ExprTuple63, 62
50Literal
51ExprTuple52, 53
52Operationoperator: 54
operands: 55
53Operationoperator: 56
operands: 57
54Literal
55ExprTuple62, 58, 59, 60, 61
56Literal
57ExprTuple62, 63
58Literal
59Literal
60Variable
61Variable
62Literal
63Literal