logo

Expression of type And

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 ExprRange, Variable, t
from proveit.logic import And, Equals
from proveit.numbers import Add, Neg, one, two, zero
from proveit.physics.quantum.QPE import _s
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
sub_expr2 = Add(t, _s)
expr = And(Equals(zero, zero), Equals(one, Add(zero, one)), And(ExprRange(sub_expr1, Equals(Add(sub_expr1, t), Add(Add(sub_expr1, Neg(one), t), one)), Add(Neg(t), two), zero)), Equals(sub_expr2, sub_expr2))
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())
\left(0 = 0\right) \land \left(1 = \left(0 + 1\right)\right) \land \left(\left(\left(\left(-t + 2\right) + t\right) = \left(\left(\left(-t + 2\right) - 1 + t\right) + 1\right)\right) \land  \left(\left(\left(-t + 3\right) + t\right) = \left(\left(\left(-t + 3\right) - 1 + t\right) + 1\right)\right) \land  \ldots \land  \left(\left(0 + t\right) = \left(\left(0 - 1 + t\right) + 1\right)\right)\right) \land \left(\left(t + s\right) = \left(t + s\right)\right)
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.()()('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',)
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 8
operands: 1
1ExprTuple2, 3, 4, 5
2Operationoperator: 23
operands: 6
3Operationoperator: 23
operands: 7
4Operationoperator: 8
operands: 9
5Operationoperator: 23
operands: 10
6ExprTuple18, 18
7ExprTuple40, 11
8Literal
9ExprTuple12
10ExprTuple13, 13
11Operationoperator: 33
operands: 14
12ExprRangelambda_map: 15
start_index: 16
end_index: 18
13Operationoperator: 33
operands: 17
14ExprTuple18, 40
15Lambdaparameter: 35
body: 20
16Operationoperator: 33
operands: 21
17ExprTuple37, 22
18Literal
19ExprTuple35
20Operationoperator: 23
operands: 24
21ExprTuple25, 26
22Literal
23Literal
24ExprTuple27, 28
25Operationoperator: 38
operand: 37
26Literal
27Operationoperator: 33
operands: 30
28Operationoperator: 33
operands: 31
29ExprTuple37
30ExprTuple35, 37
31ExprTuple32, 40
32Operationoperator: 33
operands: 34
33Literal
34ExprTuple35, 36, 37
35Variable
36Operationoperator: 38
operand: 40
37Variable
38Literal
39ExprTuple40
40Literal