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Expression of type ExprTuple

from the theory of proveit.physics.quantum.algebra

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 A, D, ExprTuple, alpha, beta
from proveit.linear_algebra import VecAdd
from proveit.logic import Equals, InClass
from proveit.physics.quantum import Qmult, QmultCodomain, ket_psi, ket_varphi
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Qmult(D, ket_varphi)
sub_expr2 = Qmult(alpha, A, beta, VecAdd(ket_psi, sub_expr1))
expr = ExprTuple(InClass(sub_expr2, QmultCodomain), Equals(sub_expr2, VecAdd(Qmult(alpha, A, beta, ket_psi), Qmult(alpha, A, beta, sub_expr1))).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())
\left(\left(\alpha \thinspace A \thinspace \beta \thinspace \left(\lvert \psi \rangle + \left(D \thinspace \lvert \varphi \rangle\right)\right)\right) \underset{{\scriptscriptstyle c}}{\in} \mathcal{Q^*}, \begin{array}{c} \begin{array}{l} \left(\alpha \thinspace A \thinspace \beta \thinspace \left(\lvert \psi \rangle + \left(D \thinspace \lvert \varphi \rangle\right)\right)\right) =  \\ \left(\left(\alpha \thinspace A \thinspace \beta \thinspace \lvert \psi \rangle\right) + \left(\alpha \thinspace A \thinspace \beta \thinspace \left(D \thinspace \lvert \varphi \rangle\right)\right)\right) \end{array} \end{array}\right)
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
wrap_positionsposition(s) at which wrapping is to occur; 'n' is after the nth comma.()()('with_wrapping_at',)
justificationif any wrap positions are set, justify to the 'left', 'center', or 'right'leftleft('with_justification',)
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0ExprTuple1, 2
1Operationoperator: 3
operands: 4
2Operationoperator: 5
operands: 6
3Literal
4ExprTuple8, 7
5Literal
6ExprTuple8, 9
7Literal
8Operationoperator: 25
operands: 10
9Operationoperator: 15
operands: 11
10ExprTuple20, 21, 22, 12
11ExprTuple13, 14
12Operationoperator: 15
operands: 16
13Operationoperator: 25
operands: 17
14Operationoperator: 25
operands: 18
15Literal
16ExprTuple19, 23
17ExprTuple20, 21, 22, 19
18ExprTuple20, 21, 22, 23
19Operationoperator: 30
operand: 27
20Variable
21Variable
22Variable
23Operationoperator: 25
operands: 26
24ExprTuple27
25Literal
26ExprTuple28, 29
27Variable
28Variable
29Operationoperator: 30
operand: 32
30Literal
31ExprTuple32
32Variable