Expression of type And

from the theory of proveit.numbers.ordering

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 a, b, c, d, e
from proveit.logic import And, Equals
from proveit.numbers import Less, LessEq

# build up the expression from sub-expressions
expr = And(Less(b, a), LessEq(a, c), Equals(c, d), LessEq(d, e)).with_total_ordering_style()

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())

b < a \leq c = d \leq e

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',)
as_total_ordering	When 'True', style the conjunction as a total ordering (e.g. x < y < z from (x < y) and (y < z))	None	True	('with_total_ordering_style',)

# 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, 6
3	Operation	operator: 7 operands: 8
4	Operation	operator: 12 operands: 9
5	Operation	operator: 10 operands: 11
6	Operation	operator: 12 operands: 13
7	Literal
8	ExprTuple	14, 15
9	ExprTuple	15, 16
10	Literal
11	ExprTuple	16, 17
12	Literal
13	ExprTuple	17, 18
14	Variable
15	Variable
16	Variable
17	Variable
18	Variable