Expression of type ExprTuple

from the theory of proveit.trigonometry

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, theta
from proveit.numbers import Add, Neg, frac, pi, two

# build up the expression from sub-expressions
sub_expr1 = frac(pi, two)
sub_expr2 = Neg(theta)
expr = ExprTuple(Add(Neg(sub_expr1), Add(sub_expr2, sub_expr1)), sub_expr2)

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(-\frac{\pi}{2} + \left(-\theta + \frac{\pi}{2}\right), -\theta\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, 8
1	Operation	operator: 6 operands: 2
2	ExprTuple	3, 4
3	Operation	operator: 10 operand: 9
4	Operation	operator: 6 operands: 7
5	ExprTuple	9
6	Literal
7	ExprTuple	8, 9
8	Operation	operator: 10 operand: 14
9	Operation	operator: 12 operands: 13
10	Literal
11	ExprTuple	14
12	Literal
13	ExprTuple	15, 16
14	Variable
15	Literal
16	Literal