Expression of type And

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.core_expr_types import P__x_1_to_n, x_1_to_n, y_1_to_n
from proveit.logic import And, Equals

# build up the expression from sub-expressions
expr = And(P__x_1_to_n, Equals([x_1_to_n], [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())

P\left(x_{1}, x_{2}, \ldots, x_{n}\right) \land \left(\left(x_{1}, x_{2}, \ldots, x_{n}\right) = \left(y_{1}, y_{2}, \ldots, y_{n}\right)\right)

stored_expr.style_options()

name	description	default	current value	related methods
operation	'infix' or 'function' style formatting	infix	infix
wrap_positions	position(s) at which wrapping is to occur; '2 n - 1' is after the nth operand, '2 n' is after the nth operation.	()	()	('with_wrapping_at', 'with_wrap_before_operator', 'with_wrap_after_operator', 'without_wrapping', 'wrap_positions')
justification	if any wrap positions are set, justify to the 'left', 'center', or 'right'	center	center	('with_justification',)

# display the expression information
stored_expr.expr_info()

	core type	sub-expressions	expression
0	Operation	operator: 1 operands: 2
1	Literal
2	ExprTuple	3, 4
3	Operation	operator: 5 operands: 8
4	Operation	operator: 6 operands: 7
5	Variable
6	Literal
7	ExprTuple	8, 9
8	ExprTuple	10
9	ExprTuple	11
10	ExprRange	lambda_map: 12 start_index: 14 end_index: 15
11	ExprRange	lambda_map: 13 start_index: 14 end_index: 15
12	Lambda	parameter: 21 body: 16
13	Lambda	parameter: 21 body: 17
14	Literal
15	Variable
16	IndexedVar	variable: 18 index: 21
17	IndexedVar	variable: 19 index: 21
18	Variable
19	Variable
20	ExprTuple	21
21	Variable