logo

Expression of type Equals

from the theory of proveit.physics.quantum.QPE

In [1]:
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 l
from proveit.logic import Equals
from proveit.numbers import Mult, i, pi, subtract, two
from proveit.physics.quantum.QPE import _delta_b_floor, _two_pow_t
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Mult(two, pi)
sub_expr2 = subtract(Mult(_two_pow_t, _delta_b_floor), l)
expr = Equals(Mult(sub_expr1, Mult(i, sub_expr2)), Mult(sub_expr1, i, sub_expr2)).with_wrapping_at(2)
expr:
In [3]:
# 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
In [4]:
# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())
\begin{array}{c} \begin{array}{l} \left(\left(2 \cdot \pi\right) \cdot \left(\mathsf{i} \cdot \left(\left(2^{t} \cdot \delta_{b_{\textit{f}}}\right) - l\right)\right)\right) =  \\ \left(\left(2 \cdot \pi\right) \cdot \mathsf{i} \cdot \left(\left(2^{t} \cdot \delta_{b_{\textit{f}}}\right) - l\right)\right) \end{array} \end{array}
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
operation'infix' or 'function' style formattinginfixinfix
wrap_positionsposition(s) at which wrapping is to occur; '2 n - 1' is after the nth operand, '2 n' is after the nth operation.()(2)('with_wrapping_at', 'with_wrap_before_operator', 'with_wrap_after_operator', 'without_wrapping', 'wrap_positions')
justificationif any wrap positions are set, justify to the 'left', 'center', or 'right'centercenter('with_justification',)
directionDirection of the relation (normal or reversed)normalnormal('with_direction_reversed', 'is_reversed')
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 1
operands: 2
1Literal
2ExprTuple3, 4
3Operationoperator: 18
operands: 5
4Operationoperator: 18
operands: 6
5ExprTuple8, 7
6ExprTuple8, 11, 12
7Operationoperator: 18
operands: 9
8Operationoperator: 18
operands: 10
9ExprTuple11, 12
10ExprTuple29, 13
11Literal
12Operationoperator: 14
operands: 15
13Literal
14Literal
15ExprTuple16, 17
16Operationoperator: 18
operands: 19
17Operationoperator: 20
operand: 24
18Literal
19ExprTuple22, 23
20Literal
21ExprTuple24
22Operationoperator: 25
operands: 26
23Operationoperator: 27
operand: 31
24Variable
25Literal
26ExprTuple29, 30
27Literal
28ExprTuple31
29Literal
30Literal
31Literal