Expression of type ExprTuple

from the theory of proveit.core_expr_types.tuples

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 ExprRange, ExprTuple, Function, Variable, f, i, j
from proveit.numbers import Add, one, subtract

# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
expr = ExprTuple(ExprRange(sub_expr1, Function(f, [Add(sub_expr1, one)]), subtract(i, one), subtract(j, one)))

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(f\left(\left(i - 1\right) + 1\right), f\left(i + 1\right), \ldots, f\left(\left(j - 1\right) + 1\right)\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	ExprRange	lambda_map: 2 start_index: 3 end_index: 4
2	Lambda	parameter: 19 body: 6
3	Operation	operator: 17 operands: 7
4	Operation	operator: 17 operands: 8
5	ExprTuple	19
6	Operation	operator: 9 operand: 14
7	ExprTuple	11, 13
8	ExprTuple	12, 13
9	Variable
10	ExprTuple	14
11	Variable
12	Variable
13	Operation	operator: 15 operand: 20
14	Operation	operator: 17 operands: 18
15	Literal
16	ExprTuple	20
17	Literal
18	ExprTuple	19, 20
19	Variable
20	Literal