Expression of type VertExprArray

from the theory of proveit.physics.quantum.circuits

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 VertExprArray
from proveit.logic import Set
from proveit.numbers import two
from proveit.physics.quantum import CONTROL, H, Y
from proveit.physics.quantum.circuits import Gate, MultiQubitElem, target

# build up the expression from sub-expressions
expr = VertExprArray([MultiQubitElem(element = CONTROL, targets = Set(two)), target], [Gate(operation = Y), Gate(operation = H)])

expr:

# 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

# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())

\begin{array}{cc} 
 \begin{array}{c} \Qcircuit@C=1em @R=.7em{
& & \gate{CONTROL~\mbox{on}~\left\{2\right\}} & \qw 
} \end{array} & \begin{array}{c} \Qcircuit@C=1em @R=.7em{
& & \gate{Y} & \qw 
} \end{array} \\
\begin{array}{c} \Qcircuit@C=1em @R=.7em{
& & \targ{} & \qw 
} \end{array} & \begin{array}{c} \Qcircuit@C=1em @R=.7em{
& & \gate{H} & \qw 
} \end{array} \\
\end{array}

stored_expr.style_options()

name	description	default	current value	related methods
justification	justify to the 'left', 'center', or 'right' in the array cells	center	center	with_justification

# display the expression information
stored_expr.expr_info()

	core type	sub-expressions	expression
0	ExprTuple	1, 2
1	ExprTuple	3, 4
2	ExprTuple	5, 6
3	Operation	operator: 7 operands: 8
4	Operation	operator: 11 operands: 9
5	Operation	operator: 11 operands: 10
6	Operation	operator: 11 operands: 12
7	Literal
8	NamedExprs	element: 13 targets: 14
9	NamedExprs	operation: 15
10	NamedExprs	operation: 16
11	Literal
12	NamedExprs	operation: 17
13	Literal
14	Operation	operator: 18 operand: 20
15	Literal
16	Literal
17	Literal
18	Literal
19	ExprTuple	20
20	Literal