Expression of type ExprArray

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 A, B, C, D, E, ExprArray, F

# build up the expression from sub-expressions
expr = ExprArray(E, F, [A, B], C, 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())

\begin{array}{cc} 
 \multicolumn{2}{c}{\begin{array}{lcr} \leftarrow & E & \rightarrow \end{array}} \\
\multicolumn{2}{c}{\begin{array}{lcr} \leftarrow & F & \rightarrow \end{array}} \\
A & B \\
\multicolumn{2}{c}{\begin{array}{lcr} \leftarrow & C & \rightarrow \end{array}} \\
\multicolumn{2}{c}{\begin{array}{lcr} \leftarrow & D & \rightarrow \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, 3, 4, 5
1	Variable
2	Variable
3	ExprTuple	6, 7
4	Variable
5	Variable
6	Variable
7	Variable