Expression of type ExprTuple

from the theory of proveit.linear_algebra.linear_maps

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, Function, P, Px, c, x
from proveit.linear_algebra import ScalarMult

# build up the expression from sub-expressions
expr = ExprTuple(Function(P, [ScalarMult(c, x)]), ScalarMult(c, Px))

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(P\left(c \cdot x\right), c \cdot P\left(x\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	Operation	operator: 9 operand: 5
2	Operation	operator: 7 operands: 4
3	ExprTuple	5
4	ExprTuple	11, 6
5	Operation	operator: 7 operands: 8
6	Operation	operator: 9 operand: 12
7	Literal
8	ExprTuple	11, 12
9	Variable
10	ExprTuple	12
11	Variable
12	Variable