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Expression of type Forall

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 Conditional, ExprRange, Variable, VertExprArray, e, l
from proveit.logic import And, Equals, Forall, InSet, Union
from proveit.numbers import Add, Interval, ModAbs, greater, one
from proveit.physics.quantum import NumKet, Z, ket_plus
from proveit.physics.quantum.QPE import ModAdd, QPE, _U, _b_floor, _full_domain, _ket_u, _neg_domain, _pos_domain, _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 = Add(_t, one)
sub_expr3 = Add(_t, _s)
sub_expr4 = Interval(sub_expr2, sub_expr3)
sub_expr5 = MultiQubitElem(element = Gate(operation = QPE(_U, _t), part = sub_expr1), targets = Interval(one, sub_expr3))
sub_expr6 = greater(ModAbs(l, _two_pow_t), e)
sub_expr7 = 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_expr4), one, _s)], [ExprRange(sub_expr1, sub_expr5, one, _t), ExprRange(sub_expr1, sub_expr5, sub_expr2, sub_expr3)], [ExprRange(sub_expr1, Measure(basis = Z), one, _t), _s_wire], [ExprRange(sub_expr1, MultiQubitElem(element = Output(state = NumKet(ModAdd(_b_floor, l), _t), part = sub_expr1), targets = Interval(one, _t)), one, _t), ExprRange(sub_expr1, MultiQubitElem(element = Output(state = _ket_u, part = sub_expr1), targets = sub_expr4), one, _s)]))
expr = Forall(instance_param_or_params = [l], instance_expr = Equals(Conditional(sub_expr7, And(InSet(l, Union(_neg_domain, _pos_domain)), sub_expr6)), Conditional(sub_expr7, And(InSet(l, _full_domain), sub_expr6))).with_wrapping_at(1))
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())
\forall_{l}~\left(\begin{array}{c} \begin{array}{l} \left\{\begin{array}{c} \Qcircuit@C=1em @R=.7em{
\qin{\lvert + \rangle} & \multigate{4}{\textrm{QPE}\left(U, t\right)} & \meter & \multiqout{3}{\lvert b_{\textit{f}} \oplus l \rangle_{t}} \\
\qin{\lvert + \rangle} & \ghost{\textrm{QPE}\left(U, t\right)} & \meter & \ghostqout{\lvert b_{\textit{f}} \oplus l \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 b_{\textit{f}} \oplus l \rangle_{t}} \\
\qin{\lvert + \rangle} & \ghost{\textrm{QPE}\left(U, t\right)} & \meter & \ghostqout{\lvert b_{\textit{f}} \oplus l \rangle_{t}} \\
\qin{\lvert u \rangle} & \ghost{\textrm{QPE}\left(U, t\right)} & { /^{s} } \qw & \qout{\lvert u \rangle}
} \end{array} \textrm{ if } l \in \left(\{-2^{t - 1} + 1~\ldotp \ldotp~-\left(e + 1\right)\} \cup \{e + 1~\ldotp \ldotp~2^{t - 1}\}\right) ,  \left|l\right|_{\textup{mod}\thinspace 2^{t}} > e\right.. \\  = \left\{\begin{array}{c} \Qcircuit@C=1em @R=.7em{
\qin{\lvert + \rangle} & \multigate{4}{\textrm{QPE}\left(U, t\right)} & \meter & \multiqout{3}{\lvert b_{\textit{f}} \oplus l \rangle_{t}} \\
\qin{\lvert + \rangle} & \ghost{\textrm{QPE}\left(U, t\right)} & \meter & \ghostqout{\lvert b_{\textit{f}} \oplus l \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 b_{\textit{f}} \oplus l \rangle_{t}} \\
\qin{\lvert + \rangle} & \ghost{\textrm{QPE}\left(U, t\right)} & \meter & \ghostqout{\lvert b_{\textit{f}} \oplus l \rangle_{t}} \\
\qin{\lvert u \rangle} & \ghost{\textrm{QPE}\left(U, t\right)} & { /^{s} } \qw & \qout{\lvert u \rangle}
} \end{array} \textrm{ if } l \in \{-2^{t - 1} + 1~\ldotp \ldotp~2^{t - 1}\} ,  \left|l\right|_{\textup{mod}\thinspace 2^{t}} > e\right.. \end{array} \end{array}\right)
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
with_wrappingIf 'True', wrap the Expression after the parametersNoneNone/False('with_wrapping',)
condition_wrappingWrap 'before' or 'after' the condition (or None).NoneNone/False('with_wrap_after_condition', 'with_wrap_before_condition')
wrap_paramsIf 'True', wraps every two parameters AND wraps the Expression after the parametersNoneNone/False('with_params',)
justificationjustify to the 'left', 'center', or 'right' in the array cellscentercenter('with_justification',)
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 1
operand: 3
1Literal
2ExprTuple3
3Lambdaparameter: 129
body: 5
4ExprTuple129
5Operationoperator: 6
operands: 7
6Literal
7ExprTuple8, 9
8Conditionalvalue: 11
condition: 10
9Conditionalvalue: 11
condition: 12
10Operationoperator: 16
operands: 13
11Operationoperator: 14
operands: 15
12Operationoperator: 16
operands: 17
13ExprTuple18, 24
14Literal
15ExprTuple19, 20, 21, 22
16Literal
17ExprTuple23, 24
18Operationoperator: 34
operands: 25
19ExprTuple26, 27
20ExprTuple28, 29
21ExprTuple30, 31
22ExprTuple32, 33
23Operationoperator: 34
operands: 35
24Operationoperator: 36
operands: 37
25ExprTuple129, 38
26ExprRangelambda_map: 39
start_index: 138
end_index: 134
27ExprRangelambda_map: 40
start_index: 138
end_index: 121
28ExprRangelambda_map: 41
start_index: 138
end_index: 134
29ExprRangelambda_map: 41
start_index: 107
end_index: 108
30ExprRangelambda_map: 42
start_index: 138
end_index: 134
31ExprRangelambda_map: 43
start_index: 138
end_index: 121
32ExprRangelambda_map: 44
start_index: 138
end_index: 134
33ExprRangelambda_map: 45
start_index: 138
end_index: 121
34Literal
35ExprTuple129, 46
36Literal
37ExprTuple123, 47
38Operationoperator: 48
operands: 49
39Lambdaparameter: 106
body: 50
40Lambdaparameter: 106
body: 51
41Lambdaparameter: 106
body: 52
42Lambdaparameter: 106
body: 53
43Lambdaparameter: 106
body: 54
44Lambdaparameter: 106
body: 55
45Lambdaparameter: 106
body: 57
46Operationoperator: 98
operands: 58
47Operationoperator: 59
operands: 60
48Literal
49ExprTuple61, 62
50Operationoperator: 90
operands: 63
51Operationoperator: 70
operands: 64
52Operationoperator: 70
operands: 65
53Operationoperator: 66
operands: 67
54Operationoperator: 91
operands: 68
55Operationoperator: 70
operands: 69
56ExprTuple106
57Operationoperator: 70
operands: 71
58ExprTuple86, 122
59Literal
60ExprTuple129, 72
61Operationoperator: 98
operands: 73
62Operationoperator: 98
operands: 74
63NamedExprsstate: 75
64NamedExprselement: 76
targets: 84
65NamedExprselement: 77
targets: 78
66Literal
67NamedExprsbasis: 79
68NamedExprsoperation: 80
69NamedExprselement: 81
targets: 82
70Literal
71NamedExprselement: 83
targets: 84
72Operationoperator: 126
operands: 85
73ExprTuple86, 87
74ExprTuple110, 122
75Operationoperator: 88
operand: 102
76Operationoperator: 90
operands: 97
77Operationoperator: 91
operands: 92
78Operationoperator: 98
operands: 93
79Literal
80Literal
81Operationoperator: 96
operands: 94
82Operationoperator: 98
operands: 95
83Operationoperator: 96
operands: 97
84Operationoperator: 98
operands: 99
85ExprTuple130, 134
86Operationoperator: 132
operands: 100
87Operationoperator: 136
operand: 110
88Literal
89ExprTuple102
90Literal
91Literal
92NamedExprsoperation: 103
part: 106
93ExprTuple138, 108
94NamedExprsstate: 104
part: 106
95ExprTuple138, 134
96Literal
97NamedExprsstate: 105
part: 106
98Literal
99ExprTuple107, 108
100ExprTuple109, 138
101ExprTuple110
102Literal
103Operationoperator: 111
operands: 112
104Operationoperator: 113
operands: 114
105Literal
106Variable
107Operationoperator: 132
operands: 115
108Operationoperator: 132
operands: 116
109Operationoperator: 136
operand: 122
110Operationoperator: 132
operands: 118
111Literal
112ExprTuple119, 134
113Literal
114ExprTuple120, 134
115ExprTuple134, 138
116ExprTuple134, 121
117ExprTuple122
118ExprTuple123, 138
119Literal
120Operationoperator: 124
operands: 125
121Literal
122Operationoperator: 126
operands: 127
123Variable
124Literal
125ExprTuple128, 129
126Literal
127ExprTuple130, 131
128Literal
129Variable
130Literal
131Operationoperator: 132
operands: 133
132Literal
133ExprTuple134, 135
134Literal
135Operationoperator: 136
operand: 138
136Literal
137ExprTuple138
138Literal