Expression of type ExprTuple

from the theory of proveit.logic.sets.inclusion

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 Conditional, ExprTuple, Lambda, x
from proveit.logic import InSet, Set
from proveit.numbers import four, one, six, three

# build up the expression from sub-expressions
expr = ExprTuple(Lambda(x, Conditional(InSet(x, Set(one, three, four, six)), InSet(x, Set(one, three, four)))))

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\{x \in \left\{1, 3, 4, 6\right\} \textrm{ if } x \in \left\{1, 3, 4\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: 10 body: 3
2	ExprTuple	10
3	Conditional	value: 4 condition: 5
4	Operation	operator: 7 operands: 6
5	Operation	operator: 7 operands: 8
6	ExprTuple	10, 9
7	Literal
8	ExprTuple	10, 11
9	Operation	operator: 13 operands: 12
10	Variable
11	Operation	operator: 13 operands: 14
12	ExprTuple	16, 17, 18, 15
13	Literal
14	ExprTuple	16, 17, 18
15	Literal
16	Literal
17	Literal
18	Literal