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 B, ExprRange, IndexedVar, Variable, VertExprArray, m
from proveit.numbers import one
from proveit.physics.quantum.circuits import Input

# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
expr = VertExprArray([ExprRange(sub_expr1, Input(state = IndexedVar(B, sub_expr1)), one, m)])

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}{c} 
 \begin{array}{c} \Qcircuit@C=1em @R=.7em{
& \qin{B_{1}} & \qw 
} \end{array} \\
\begin{array}{c} \Qcircuit@C=1em @R=.7em{
& \qin{B_{2}} & \qw 
} \end{array} \\
\vdots \\
\begin{array}{c} \Qcircuit@C=1em @R=.7em{
& \qin{B_{m}} & \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
1	ExprTuple	2
2	ExprRange	lambda_map: 3 start_index: 4 end_index: 5
3	Lambda	parameter: 12 body: 6
4	Literal
5	Variable
6	Operation	operator: 7 operands: 8
7	Literal
8	NamedExprs	state: 9
9	IndexedVar	variable: 10 index: 12
10	Variable
11	ExprTuple	12
12	Variable