Expression of type And

from the theory of proveit.numbers.exponentiation

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, IndexedVar, Variable, a, b, m
from proveit.logic import And, InSet, NotEquals
from proveit.numbers import Complex, Real, one, zero

# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
sub_expr2 = IndexedVar(a, sub_expr1)
expr = And(ExprRange(sub_expr1, InSet(sub_expr2, Complex), one, m), InSet(b, Real), ExprRange(sub_expr1, NotEquals(sub_expr2, zero), one, m))

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(a_{1} \in \mathbb{C}\right) \land  \left(a_{2} \in \mathbb{C}\right) \land  \ldots \land  \left(a_{m} \in \mathbb{C}\right) \land \left(b \in \mathbb{R}\right)\land \left(a_{1} \neq 0\right) \land  \left(a_{2} \neq 0\right) \land  \ldots \land  \left(a_{m} \neq 0\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, 5
3	ExprRange	lambda_map: 6 start_index: 9 end_index: 10
4	Operation	operator: 15 operands: 7
5	ExprRange	lambda_map: 8 start_index: 9 end_index: 10
6	Lambda	parameter: 24 body: 11
7	ExprTuple	12, 13
8	Lambda	parameter: 24 body: 14
9	Literal
10	Variable
11	Operation	operator: 15 operands: 16
12	Variable
13	Literal
14	Operation	operator: 17 operands: 18
15	Literal
16	ExprTuple	20, 19
17	Literal
18	ExprTuple	20, 21
19	Literal
20	IndexedVar	variable: 22 index: 24
21	Literal
22	Variable
23	ExprTuple	24
24	Variable