Expression of type ExprTuple

from the theory of proveit.linear_algebra.tensors

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, x, y, z
from proveit.linear_algebra import TensorProd, VecAdd
from proveit.logic import CartExp, Equals, InSet
from proveit.numbers import Real, three

# build up the expression from sub-expressions
sub_expr1 = CartExp(Real, three)
sub_expr2 = TensorProd(VecAdd(x, y), z)
expr = ExprTuple(InSet(sub_expr2, TensorProd(sub_expr1, sub_expr1)), Equals(sub_expr2, VecAdd(TensorProd(x, z), TensorProd(y, z))).with_wrapping_at(2))

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(\left(x + y\right) {\otimes} z\right) \in \left(\mathbb{R}^{3} {\otimes} \mathbb{R}^{3}\right), \begin{array}{c} \begin{array}{l} \left(\left(x + y\right) {\otimes} z\right) =  \\ \left(\left(x {\otimes} z\right) + \left(y {\otimes} z\right)\right) \end{array} \end{array}\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: 3 operands: 4
2	Operation	operator: 5 operands: 6
3	Literal
4	ExprTuple	8, 7
5	Literal
6	ExprTuple	8, 9
7	Operation	operator: 22 operands: 10
8	Operation	operator: 22 operands: 11
9	Operation	operator: 19 operands: 12
10	ExprTuple	13, 13
11	ExprTuple	14, 28
12	ExprTuple	15, 16
13	Operation	operator: 17 operands: 18
14	Operation	operator: 19 operands: 20
15	Operation	operator: 22 operands: 21
16	Operation	operator: 22 operands: 23
17	Literal
18	ExprTuple	24, 25
19	Literal
20	ExprTuple	26, 27
21	ExprTuple	26, 28
22	Literal
23	ExprTuple	27, 28
24	Literal
25	Literal
26	Variable
27	Variable
28	Variable