Expression of type ExprTuple

from the theory of proveit.core_expr_types.expr_arrays

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 ExprTuple, VertExprArray, b, d
from proveit.core_expr_types import a_1_to_i, c_1_to_i

# build up the expression from sub-expressions
expr = ExprTuple(VertExprArray(a_1_to_i, b), VertExprArray(c_1_to_i, d))

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())

\left(\left(\begin{array}{ccccc} 
 \multirow{1}{*}{$\begin{array}{c} \uparrow \\ a_{1} \\ \downarrow \end{array}$} & \multirow{1}{*}{$\begin{array}{c} \uparrow \\ a_{2} \\ \downarrow \end{array}$} & \multirow{1}{*}{$\begin{array}{c} \uparrow \\ \cdots \\ \downarrow \end{array}$} & \multirow{1}{*}{$\begin{array}{c} \uparrow \\ a_{i} \\ \downarrow \end{array}$} & \multirow{1}{*}{$\begin{array}{c} \uparrow \\ b \\ \downarrow \end{array}$} \\
\end{array}
\right), \left(\begin{array}{ccccc} 
 \multirow{1}{*}{$\begin{array}{c} \uparrow \\ c_{1} \\ \downarrow \end{array}$} & \multirow{1}{*}{$\begin{array}{c} \uparrow \\ c_{2} \\ \downarrow \end{array}$} & \multirow{1}{*}{$\begin{array}{c} \uparrow \\ \cdots \\ \downarrow \end{array}$} & \multirow{1}{*}{$\begin{array}{c} \uparrow \\ c_{i} \\ \downarrow \end{array}$} & \multirow{1}{*}{$\begin{array}{c} \uparrow \\ d \\ \downarrow \end{array}$} \\
\end{array}
\right)\right)

stored_expr.style_options()

name	description	default	current value	related methods
wrap_positions	position(s) at which wrapping is to occur; 'n' is after the nth comma.	()	()	('with_wrapping_at',)
justification	if any wrap positions are set, justify to the 'left', 'center', or 'right'	left	left	('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	ExprRange	lambda_map: 7 start_index: 9 end_index: 10
4	Variable
5	ExprRange	lambda_map: 8 start_index: 9 end_index: 10
6	Variable
7	Lambda	parameter: 16 body: 11
8	Lambda	parameter: 16 body: 12
9	Literal
10	Variable
11	IndexedVar	variable: 13 index: 16
12	IndexedVar	variable: 14 index: 16
13	Variable
14	Variable
15	ExprTuple	16
16	Variable