Expression of type Conditional

from the theory of proveit.numbers.rounding

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, x, y
from proveit.logic import And, InSet
from proveit.numbers import Add, Ceil, Real, greater_eq, one, subtract

# build up the expression from sub-expressions
expr = Conditional(greater_eq(Ceil(Add(x, y)), subtract(Add(Ceil(x), Ceil(y)), one)), And(InSet(x, Real), InSet(y, Real)))

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\{\left\lceil x + y\right\rceil \geq \left(\left(\left\lceil x\right\rceil + \left\lceil y\right\rceil\right) - 1\right) \textrm{ if } x \in \mathbb{R} ,  y \in \mathbb{R}\right..

stored_expr.style_options()

name	description	default	current value	related methods
condition_delimiter	'comma' or 'and'	comma	comma	('with_comma_delimiter', 'with_conjunction_delimiter')

# display the expression information
stored_expr.expr_info()

	core type	sub-expressions	expression
0	Conditional	value: 1 condition: 2
1	Operation	operator: 3 operands: 4
2	Operation	operator: 5 operands: 6
3	Literal
4	ExprTuple	7, 8
5	Literal
6	ExprTuple	9, 10
7	Operation	operator: 23 operands: 11
8	Operation	operator: 29 operand: 18
9	Operation	operator: 14 operands: 13
10	Operation	operator: 14 operands: 15
11	ExprTuple	16, 17
12	ExprTuple	18
13	ExprTuple	31, 19
14	Literal
15	ExprTuple	32, 19
16	Operation	operator: 23 operands: 20
17	Operation	operator: 21 operand: 27
18	Operation	operator: 23 operands: 24
19	Literal
20	ExprTuple	25, 26
21	Literal
22	ExprTuple	27
23	Literal
24	ExprTuple	31, 32
25	Operation	operator: 29 operand: 31
26	Operation	operator: 29 operand: 32
27	Literal
28	ExprTuple	31
29	Literal
30	ExprTuple	32
31	Variable
32	Variable