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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, B, Composition, Conditional, ExprTuple, Lambda, X, Y
from proveit.linear_algebra import HilbertSpaces, Hspace, LinMap
from proveit.logic import And, Equals, Forall, InClass, InSet
from proveit.physics.quantum import Qmult
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Qmult(A)
sub_expr2 = Qmult(B)
expr = ExprTuple(Lambda([Hspace, X, Y], Conditional(Forall(instance_param_or_params = [A, B], instance_expr = Equals(Qmult(A, B), Composition(sub_expr1, sub_expr2)), conditions = [InSet(sub_expr1, LinMap(X, Y)), InSet(sub_expr2, LinMap(Hspace, X))]), And(InClass(Hspace, HilbertSpaces), InClass(X, HilbertSpaces), InClass(Y, HilbertSpaces)))))
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(\mathcal{H}, X, Y\right) \mapsto \left\{\forall_{A, B~|~\left[A\right] \in \mathcal{L}\left(X, Y\right), \left[B\right] \in \mathcal{L}\left(\mathcal{H}, X\right)}~\left(\left(A \thinspace B\right) = \left(\left[A\right] \circ \left[B\right]\right)\right) \textrm{ if } \mathcal{H} \underset{{\scriptscriptstyle c}}{\in} \textrm{HilbertSpaces} ,  X \underset{{\scriptscriptstyle c}}{\in} \textrm{HilbertSpaces} ,  Y \underset{{\scriptscriptstyle c}}{\in} \textrm{HilbertSpaces}\right..\right)
In [5]:
stored_expr.style_options()
no style options
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0ExprTuple1
1Lambdaparameters: 2
body: 3
2ExprTuple48, 49, 46
3Conditionalvalue: 4
condition: 5
4Operationoperator: 6
operand: 9
5Operationoperator: 23
operands: 8
6Literal
7ExprTuple9
8ExprTuple10, 11, 12
9Lambdaparameters: 29
body: 13
10Operationoperator: 16
operands: 14
11Operationoperator: 16
operands: 15
12Operationoperator: 16
operands: 17
13Conditionalvalue: 18
condition: 19
14ExprTuple48, 20
15ExprTuple49, 20
16Literal
17ExprTuple46, 20
18Operationoperator: 21
operands: 22
19Operationoperator: 23
operands: 24
20Literal
21Literal
22ExprTuple25, 26
23Literal
24ExprTuple27, 28
25Operationoperator: 41
operands: 29
26Operationoperator: 30
operands: 31
27Operationoperator: 33
operands: 32
28Operationoperator: 33
operands: 34
29ExprTuple45, 47
30Literal
31ExprTuple35, 37
32ExprTuple35, 36
33Literal
34ExprTuple37, 38
35Operationoperator: 41
operand: 45
36Operationoperator: 43
operands: 40
37Operationoperator: 41
operand: 47
38Operationoperator: 43
operands: 44
39ExprTuple45
40ExprTuple49, 46
41Literal
42ExprTuple47
43Literal
44ExprTuple48, 49
45Variable
46Variable
47Variable
48Variable
49Variable