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In [1]:
import proveit
# Automation is not needed when only building an expression:
proveit.defaults.automation = False # This will speed things up.
proveit.defaults.inline_pngs = False # Makes files smaller.
%load_theorem_expr # Load the stored theorem expression as 'stored_expr'
# import the special expression
from proveit.physics.quantum.circuits import qubit_meas_sample_space
In [2]:
# check that the built expression is the same as the stored expression
assert qubit_meas_sample_space.expr == stored_expr
assert qubit_meas_sample_space.expr._style_id == stored_expr._style_id
print("Passed sanity check: qubit_meas_sample_space matches stored_expr")
Passed sanity check: qubit_meas_sample_space matches stored_expr
In [3]:
# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())
\forall_{\lvert \psi \rangle \in \mathbb{C}^{2}~|~\left \|\lvert \psi \rangle\right \| = 1}~\left(\left\{\begin{array}{c} \Qcircuit@C=1em @R=.7em{
\qin{\lvert \psi \rangle} & \meter & \qout{\lvert b \rangle}
} \end{array}\right\}_{b \in \left\{0, 1\right\}} \underset{{\scriptscriptstyle c}}{\in} \textrm{SampleSpaces}\right)
In [4]:
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 [5]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 1
operand: 3
1Literal
2ExprTuple3
3Lambdaparameter: 53
body: 4
4Conditionalvalue: 5
condition: 6
5Operationoperator: 7
operands: 8
6Operationoperator: 9
operands: 10
7Literal
8ExprTuple11, 12
9Literal
10ExprTuple13, 14
11Operationoperator: 15
operand: 20
12Literal
13Operationoperator: 34
operands: 17
14Operationoperator: 18
operands: 19
15Literal
16ExprTuple20
17ExprTuple53, 21
18Literal
19ExprTuple22, 52
20Lambdaparameter: 58
body: 23
21Operationoperator: 24
operands: 25
22Operationoperator: 26
operand: 53
23Conditionalvalue: 28
condition: 29
24Literal
25ExprTuple30, 31
26Literal
27ExprTuple53
28Operationoperator: 32
operands: 33
29Operationoperator: 34
operands: 35
30Literal
31Literal
32Literal
33ExprTuple36, 37, 38
34Literal
35ExprTuple58, 39
36ExprTuple40
37ExprTuple41
38ExprTuple42
39Operationoperator: 43
operands: 44
40Operationoperator: 45
operands: 46
41Operationoperator: 47
operands: 48
42Operationoperator: 49
operands: 50
43Literal
44ExprTuple51, 52
45Literal
46NamedExprsstate: 53
47Literal
48NamedExprsbasis: 54
49Literal
50NamedExprsstate: 55
51Literal
52Literal
53Variable
54Literal
55Operationoperator: 56
operand: 58
56Literal
57ExprTuple58
58Variable