Common B11_to_Bkl_array of type ExprArray

from the theory of proveit.core_expr_types.expr_arrays

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_expr # Load the stored expression as 'stored_expr'
# import the special expression
from proveit.core_expr_types.expr_arrays import B11_to_Bkl_array

# check that the built expression is the same as the stored expression
assert B11_to_Bkl_array == stored_expr
assert B11_to_Bkl_array._style_id == stored_expr._style_id
print("Passed sanity check: B11_to_Bkl_array matches stored_expr")

Passed sanity check: B11_to_Bkl_array matches stored_expr

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

\begin{array}{cccc} 
 B_{1, 1} & B_{1, 2} & \cdots & B_{1, l} \\
B_{2, 1} & B_{2, 2} & \cdots & B_{2, l} \\
\vdots & \vdots & \ddots & \vdots \\
B_{k, 1} & B_{k, 2} & \cdots & B_{k, l} \\
\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	ExprRange	lambda_map: 2 start_index: 8 end_index: 3
2	Lambda	parameter: 14 body: 5
3	Variable
4	ExprTuple	14
5	ExprTuple	6
6	ExprRange	lambda_map: 7 start_index: 8 end_index: 9
7	Lambda	parameter: 15 body: 11
8	Literal
9	Variable
10	ExprTuple	15
11	IndexedVar	variable: 12 indices: 13
12	Variable
13	ExprTuple	14, 15
14	Variable
15	Variable