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 Abs, Mult, frac, pi, subtract, two, zero

# build up the expression from sub-expressions
expr = ExprTuple(frac(Abs(subtract(zero, Mult(two, pi, theta))), two))

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{\left|0 - \left(2 \cdot \pi \cdot \theta\right)\right|}{2}\right)

stored_expr.style_options()

no style options

# display the expression information
stored_expr.expr_info()

	core type	sub-expressions	expression
0	ExprTuple	1
1	Operation	operator: 2 operands: 3
2	Literal
3	ExprTuple	4, 17
4	Operation	operator: 5 operand: 7
5	Literal
6	ExprTuple	7
7	Operation	operator: 8 operands: 9
8	Literal
9	ExprTuple	10, 11
10	Literal
11	Operation	operator: 12 operand: 14
12	Literal
13	ExprTuple	14
14	Operation	operator: 15 operands: 16
15	Literal
16	ExprTuple	17, 18, 19
17	Literal
18	Literal
19	Variable