Expression of type ExprTuple

from the theory of proveit.numbers.summation

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, i, j, k, x
from proveit.numbers import Add, Exp, Interval, Sum, frac, one, subtract

# build up the expression from sub-expressions
expr = ExprTuple(Sum(index_or_indices = [i], summand = Exp(x, i), domain = Interval(j, k)), frac(subtract(Exp(x, j), Exp(x, Add(k, one))), subtract(one, x)))

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(\sum_{i = j}^{k} x^{i}, \frac{x^{j} - x^{k + 1}}{1 - x}\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 operand: 7
2	Operation	operator: 5 operands: 6
3	Literal
4	ExprTuple	7
5	Literal
6	ExprTuple	8, 9
7	Lambda	parameter: 26 body: 11
8	Operation	operator: 36 operands: 12
9	Operation	operator: 36 operands: 13
10	ExprTuple	26
11	Conditional	value: 14 condition: 15
12	ExprTuple	16, 17
13	ExprTuple	39, 18
14	Operation	operator: 31 operands: 19
15	Operation	operator: 20 operands: 21
16	Operation	operator: 31 operands: 22
17	Operation	operator: 24 operand: 28
18	Operation	operator: 24 operand: 34
19	ExprTuple	34, 26
20	Literal
21	ExprTuple	26, 27
22	ExprTuple	34, 33
23	ExprTuple	28
24	Literal
25	ExprTuple	34
26	Variable
27	Operation	operator: 29 operands: 30
28	Operation	operator: 31 operands: 32
29	Literal
30	ExprTuple	33, 38
31	Literal
32	ExprTuple	34, 35
33	Variable
34	Variable
35	Operation	operator: 36 operands: 37
36	Literal
37	ExprTuple	38, 39
38	Variable
39	Literal