Expression of type LessEq

from the theory of proveit.physics.quantum.QPE

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 Variable
from proveit.numbers import Add, Exp, Mult, Neg, four, frac, greater_eq, one, subtract, two
from proveit.physics.quantum.QPE import _eps, _n, _t

# build up the expression from sub-expressions
sub_expr1 = subtract(Exp(two, subtract(_t, _n)), one)
expr = greater_eq(Add(one, Neg(frac(one, Mult(two, sub_expr1))), Neg(frac(one, Mult(four, Exp(sub_expr1, two))))), Add(one, Neg(Variable("_a", latex_format = r"{_{-}a}")), Neg(frac(one, Exp(Add(two, frac(one, _eps)), two)))))

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(1 - \frac{1}{2 \cdot \left(2^{t - n} - 1\right)} - \frac{1}{4 \cdot \left(2^{t - n} - 1\right)^{2}}\right) \geq \left(1 - {_{-}a} - \frac{1}{\left(2 + \frac{1}{\epsilon}\right)^{2}}\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',)
direction	Direction of the relation (normal or reversed)	normal	reversed	('with_direction_reversed', 'is_reversed')

# 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: 48 operands: 5
4	Operation	operator: 48 operands: 6
5	ExprTuple	47, 7, 8
6	ExprTuple	47, 9, 10
7	Operation	operator: 52 operand: 15
8	Operation	operator: 52 operand: 16
9	Operation	operator: 52 operand: 17
10	Operation	operator: 52 operand: 18
11	ExprTuple	15
12	ExprTuple	16
13	ExprTuple	17
14	ExprTuple	18
15	Variable
16	Operation	operator: 36 operands: 19
17	Operation	operator: 36 operands: 20
18	Operation	operator: 36 operands: 21
19	ExprTuple	47, 22
20	ExprTuple	47, 23
21	ExprTuple	47, 24
22	Operation	operator: 42 operands: 25
23	Operation	operator: 27 operands: 26
24	Operation	operator: 27 operands: 28
25	ExprTuple	29, 45
26	ExprTuple	45, 35
27	Literal
28	ExprTuple	30, 31
29	Operation	operator: 48 operands: 32
30	Literal
31	Operation	operator: 42 operands: 33
32	ExprTuple	45, 34
33	ExprTuple	35, 45
34	Operation	operator: 36 operands: 37
35	Operation	operator: 48 operands: 38
36	Literal
37	ExprTuple	47, 39
38	ExprTuple	40, 41
39	Literal
40	Operation	operator: 42 operands: 43
41	Operation	operator: 52 operand: 47
42	Literal
43	ExprTuple	45, 46
44	ExprTuple	47
45	Literal
46	Operation	operator: 48 operands: 49
47	Literal
48	Literal
49	ExprTuple	50, 51
50	Literal
51	Operation	operator: 52 operand: 54
52	Literal
53	ExprTuple	54
54	Literal