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Expression of type NamedExprs

from the theory of proveit.physics.quantum.circuits

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 NamedExprs, U, Variable, m
from proveit.numbers import Add, Interval, two
from proveit.physics.quantum.circuits import Gate
In [2]:
# build up the expression from sub-expressions
expr = NamedExprs(("element", Gate(operation = U, part = Variable("_a", latex_format = r"{_{-}a}"))), ("targets", Interval(two, Add(m, two))))
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\{ \begin{array}{l}
{\rm element}: \begin{array}{c} \Qcircuit@C=1em @R=.7em{
& & \gate{U~\mbox{part}~{_{-}a}} & \qw 
} \end{array}\\
{\rm targets}: \{2~\ldotp \ldotp~m + 2\}\\
\end{array} \right\}

In [5]:
stored_expr.style_options()
no style options
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0NamedExprselement: 1
targets: 2
1Operationoperator: 3
operands: 4
2Operationoperator: 5
operands: 6
3Literal
4NamedExprsoperation: 7
part: 8
5Literal
6ExprTuple13, 9
7Variable
8Variable
9Operationoperator: 10
operands: 11
10Literal
11ExprTuple12, 13
12Variable
13Literal