Expression of type ExprTuple

from the theory of proveit.logic.equality

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
from proveit.core_expr_types import P__y_1_to_n, x_eq_y__1_to_n

# build up the expression from sub-expressions
expr = ExprTuple(P__y_1_to_n, x_eq_y__1_to_n)

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(P\left(y_{1}, y_{2}, \ldots, y_{n}\right),\left(x_{1} = y_{1}\right), \left(x_{2} = y_{2}\right), \ldots, \left(x_{n} = y_{n}\right)\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 operands: 4
2	ExprRange	lambda_map: 5 start_index: 9 end_index: 10
3	Variable
4	ExprTuple	6
5	Lambda	parameter: 18 body: 7
6	ExprRange	lambda_map: 8 start_index: 9 end_index: 10
7	Operation	operator: 11 operands: 12
8	Lambda	parameter: 18 body: 14
9	Literal
10	Variable
11	Literal
12	ExprTuple	13, 14
13	IndexedVar	variable: 15 index: 18
14	IndexedVar	variable: 16 index: 18
15	Variable
16	Variable
17	ExprTuple	18
18	Variable