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Expression of type Implies

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 ExprRange, IndexedVar, Variable, VertExprArray, e, m
from proveit.logic import Forall, Implies, SetOfAll, SubsetEq, TRUE
from proveit.numbers import Add, Interval, ModAbs, greater, one, subtract
from proveit.physics.quantum import NumKet, Z, ket_plus
from proveit.physics.quantum.QPE import QPE, _U, _b_floor, _ket_u, _m_domain, _phase_est_circuit, _s, _s_wire, _t, _two_pow_t
from proveit.physics.quantum.circuits import Gate, Input, Measure, MultiQubitElem, Output, Qcircuit
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
sub_expr2 = [m]
sub_expr3 = IndexedVar(m, one)
sub_expr4 = Add(_t, one)
sub_expr5 = Add(_t, _s)
sub_expr6 = Interval(sub_expr4, sub_expr5)
sub_expr7 = MultiQubitElem(element = Gate(operation = QPE(_U, _t), part = sub_expr1), targets = Interval(one, sub_expr5))
sub_expr8 = greater(ModAbs(subtract(m, _b_floor), _two_pow_t), e)
expr = Implies(Forall(instance_param_or_params = sub_expr2, instance_expr = TRUE, domain = _m_domain, condition = sub_expr8), SubsetEq(SetOfAll(instance_param_or_params = sub_expr2, instance_element = _phase_est_circuit, domain = _m_domain, condition = sub_expr8), SetOfAll(instance_param_or_params = [sub_expr3], instance_element = Qcircuit(vert_expr_array = VertExprArray([ExprRange(sub_expr1, Input(state = ket_plus), one, _t), ExprRange(sub_expr1, MultiQubitElem(element = Input(state = _ket_u, part = sub_expr1), targets = sub_expr6), one, _s)], [ExprRange(sub_expr1, sub_expr7, one, _t), ExprRange(sub_expr1, sub_expr7, sub_expr4, sub_expr5)], [ExprRange(sub_expr1, Measure(basis = Z), one, _t), _s_wire], [ExprRange(sub_expr1, MultiQubitElem(element = Output(state = NumKet(sub_expr3, _t), part = sub_expr1), targets = Interval(one, _t)), one, _t), ExprRange(sub_expr1, MultiQubitElem(element = Output(state = _ket_u, part = sub_expr1), targets = sub_expr6), one, _s)])), domain = _m_domain)).with_wrapping_at(2)).with_wrapping_at(2)
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())
\begin{array}{c} \begin{array}{l} \left[\forall_{m \in \{0~\ldotp \ldotp~2^{t} - 1\}~|~\left|m - b_{\textit{f}}\right|_{\textup{mod}\thinspace 2^{t}} > e}~\top\right] \Rightarrow  \\ \left(\begin{array}{c} \begin{array}{l} \left\{\left(\begin{array}{c} \Qcircuit@C=1em @R=.7em{
\qin{\lvert + \rangle} & \multigate{4}{\textrm{QPE}\left(U, t\right)} & \meter & \multiqout{3}{\lvert m \rangle_{t}} \\
\qin{\lvert + \rangle} & \ghost{\textrm{QPE}\left(U, t\right)} & \meter & \ghostqout{\lvert m \rangle_{t}} \\
\qin{\begin{array}{c}:\\ \left(t - 3\right) \times \\:\end{array}} & \ghost{\textrm{QPE}\left(U, t\right)} & \measure{\begin{array}{c}:\\ \left(t - 3\right) \times \\:\end{array}} \qw & \ghostqout{\lvert m \rangle_{t}} \\
\qin{\lvert + \rangle} & \ghost{\textrm{QPE}\left(U, t\right)} & \meter & \ghostqout{\lvert m \rangle_{t}} \\
\qin{\lvert u \rangle} & \ghost{\textrm{QPE}\left(U, t\right)} & { /^{s} } \qw & \qout{\lvert u \rangle}
} \end{array}\right)~|~\left|m - b_{\textit{f}}\right|_{\textup{mod}\thinspace 2^{t}} > e\right\}_{m \in \{0~\ldotp \ldotp~2^{t} - 1\}} \subseteq  \\ \left\{\begin{array}{c} \Qcircuit@C=1em @R=.7em{
\qin{\lvert + \rangle} & \multigate{4}{\textrm{QPE}\left(U, t\right)} & \meter & \multiqout{3}{\lvert m_{1} \rangle_{t}} \\
\qin{\lvert + \rangle} & \ghost{\textrm{QPE}\left(U, t\right)} & \meter & \ghostqout{\lvert m_{1} \rangle_{t}} \\
\qin{\begin{array}{c}:\\ \left(t - 3\right) \times \\:\end{array}} & \ghost{\textrm{QPE}\left(U, t\right)} & \measure{\begin{array}{c}:\\ \left(t - 3\right) \times \\:\end{array}} \qw & \ghostqout{\lvert m_{1} \rangle_{t}} \\
\qin{\lvert + \rangle} & \ghost{\textrm{QPE}\left(U, t\right)} & \meter & \ghostqout{\lvert m_{1} \rangle_{t}} \\
\qin{\lvert u \rangle} & \ghost{\textrm{QPE}\left(U, t\right)} & { /^{s} } \qw & \qout{\lvert u \rangle}
} \end{array}\right\}_{m_{1} \in \{0~\ldotp \ldotp~2^{t} - 1\}} \end{array} \end{array}\right) \end{array} \end{array}
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.()(2)('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: 5
operand: 9
4Operationoperator: 7
operands: 8
5Literal
6ExprTuple9
7Literal
8ExprTuple10, 11
9Lambdaparameter: 144
body: 12
10Operationoperator: 14
operand: 17
11Operationoperator: 14
operand: 18
12Conditionalvalue: 16
condition: 24
13ExprTuple17
14Literal
15ExprTuple18
16Literal
17Lambdaparameter: 144
body: 20
18Lambdaparameter: 141
body: 22
19ExprTuple144
20Conditionalvalue: 23
condition: 24
21ExprTuple141
22Conditionalvalue: 25
condition: 26
23Operationoperator: 30
operands: 27
24Operationoperator: 28
operands: 29
25Operationoperator: 30
operands: 31
26Operationoperator: 41
operands: 32
27ExprTuple36, 37, 38, 33
28Literal
29ExprTuple34, 35
30Literal
31ExprTuple36, 37, 38, 39
32ExprTuple141, 54
33ExprTuple40, 52
34Operationoperator: 41
operands: 42
35Operationoperator: 43
operands: 44
36ExprTuple45, 46
37ExprTuple47, 48
38ExprTuple49, 50
39ExprTuple51, 52
40ExprRangelambda_map: 53
start_index: 146
end_index: 142
41Literal
42ExprTuple144, 54
43Literal
44ExprTuple55, 56
45ExprRangelambda_map: 57
start_index: 146
end_index: 142
46ExprRangelambda_map: 58
start_index: 146
end_index: 143
47ExprRangelambda_map: 59
start_index: 146
end_index: 142
48ExprRangelambda_map: 59
start_index: 128
end_index: 129
49ExprRangelambda_map: 60
start_index: 146
end_index: 142
50ExprRangelambda_map: 61
start_index: 146
end_index: 143
51ExprRangelambda_map: 62
start_index: 146
end_index: 142
52ExprRangelambda_map: 63
start_index: 146
end_index: 143
53Lambdaparameter: 127
body: 64
54Operationoperator: 116
operands: 65
55Variable
56Operationoperator: 66
operands: 67
57Lambdaparameter: 127
body: 68
58Lambdaparameter: 127
body: 69
59Lambdaparameter: 127
body: 70
60Lambdaparameter: 127
body: 71
61Lambdaparameter: 127
body: 72
62Lambdaparameter: 127
body: 73
63Lambdaparameter: 127
body: 75
64Operationoperator: 87
operands: 76
65ExprTuple77, 78
66Literal
67ExprTuple79, 103
68Operationoperator: 108
operands: 80
69Operationoperator: 87
operands: 81
70Operationoperator: 87
operands: 82
71Operationoperator: 83
operands: 84
72Operationoperator: 109
operands: 85
73Operationoperator: 87
operands: 86
74ExprTuple127
75Operationoperator: 87
operands: 88
76NamedExprselement: 89
targets: 99
77Literal
78Operationoperator: 138
operands: 90
79Operationoperator: 138
operands: 91
80NamedExprsstate: 92
81NamedExprselement: 93
targets: 101
82NamedExprselement: 94
targets: 95
83Literal
84NamedExprsbasis: 96
85NamedExprsoperation: 97
86NamedExprselement: 98
targets: 99
87Literal
88NamedExprselement: 100
targets: 101
89Operationoperator: 114
operands: 102
90ExprTuple103, 104
91ExprTuple144, 105
92Operationoperator: 106
operand: 123
93Operationoperator: 108
operands: 115
94Operationoperator: 109
operands: 110
95Operationoperator: 116
operands: 111
96Literal
97Literal
98Operationoperator: 114
operands: 112
99Operationoperator: 116
operands: 113
100Operationoperator: 114
operands: 115
101Operationoperator: 116
operands: 117
102NamedExprsstate: 118
part: 127
103Operationoperator: 119
operands: 120
104Operationoperator: 121
operand: 146
105Operationoperator: 121
operand: 132
106Literal
107ExprTuple123
108Literal
109Literal
110NamedExprsoperation: 124
part: 127
111ExprTuple146, 129
112NamedExprsstate: 125
part: 127
113ExprTuple146, 142
114Literal
115NamedExprsstate: 126
part: 127
116Literal
117ExprTuple128, 129
118Operationoperator: 135
operands: 130
119Literal
120ExprTuple131, 142
121Literal
122ExprTuple132
123Literal
124Operationoperator: 133
operands: 134
125Operationoperator: 135
operands: 136
126Literal
127Variable
128Operationoperator: 138
operands: 137
129Operationoperator: 138
operands: 139
130ExprTuple144, 142
131Literal
132Literal
133Literal
134ExprTuple140, 142
135Literal
136ExprTuple141, 142
137ExprTuple142, 146
138Literal
139ExprTuple142, 143
140Literal
141IndexedVarvariable: 144
index: 146
142Literal
143Literal
144Variable
145ExprTuple146
146Literal