Expression of type ExprTuple

from the theory of proveit.numbers.numerals.decimals

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, Lambda, Variable, x
from proveit.logic import Equals
from proveit.numbers import one, two

# build up the expression from sub-expressions
expr = ExprTuple(Lambda(x, Equals([ExprRange(Variable("_a", latex_format = r"{_{-}a}"), x, one, two)], [x, 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(x \mapsto \left(\left(x, ..0 \times.., x\right) = \left(x, x\right)\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	Lambda	parameter: 13 body: 3
2	ExprTuple	13
3	Operation	operator: 4 operands: 5
4	Literal
5	ExprTuple	6, 7
6	ExprTuple	8
7	ExprTuple	13, 13
8	ExprRange	lambda_map: 9 start_index: 10 end_index: 11
9	Lambda	parameter: 14 body: 13
10	Literal
11	Literal
12	ExprTuple	14
13	Variable
14	Variable