logo

Expression of type ExprTuple

from the theory of proveit.linear_algebra.tensors

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 ExprTuple, Function, Lambda, V, s
from proveit.core_expr_types import Q__b_1_to_j, a_1_to_i, b_1_to_j, c_1_to_k, f__b_1_to_j
from proveit.linear_algebra import ScalarMult, TensorProd, VecSum
from proveit.logic import Equals, Forall, Implies, InSet
In [2]:
# build up the expression from sub-expressions
sub_expr1 = [b_1_to_j]
sub_expr2 = Function(s, sub_expr1)
sub_expr3 = ScalarMult(sub_expr2, f__b_1_to_j)
expr = ExprTuple(Lambda([a_1_to_i, c_1_to_k], Implies(Forall(instance_param_or_params = sub_expr1, instance_expr = InSet(TensorProd(a_1_to_i, sub_expr3, c_1_to_k), V), condition = Q__b_1_to_j), Equals(TensorProd(a_1_to_i, VecSum(index_or_indices = sub_expr1, summand = sub_expr3, condition = Q__b_1_to_j), c_1_to_k), VecSum(index_or_indices = sub_expr1, summand = ScalarMult(sub_expr2, TensorProd(a_1_to_i, f__b_1_to_j, c_1_to_k)), condition = Q__b_1_to_j)).with_wrapping_at(1)).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(a_{1}, a_{2}, \ldots, a_{i}, c_{1}, c_{2}, \ldots, c_{k}\right) \mapsto \left(\begin{array}{c} \begin{array}{l} \left[\forall_{b_{1}, b_{2}, \ldots, b_{j}~|~Q\left(b_{1}, b_{2}, \ldots, b_{j}\right)}~\left(\left(a_{1} {\otimes}  a_{2} {\otimes}  \ldots {\otimes}  a_{i} {\otimes} \left(s\left(b_{1}, b_{2}, \ldots, b_{j}\right) \cdot f\left(b_{1}, b_{2}, \ldots, b_{j}\right)\right){\otimes} c_{1} {\otimes}  c_{2} {\otimes}  \ldots {\otimes}  c_{k}\right) \in V\right)\right] \Rightarrow  \\ \left(\begin{array}{c} \begin{array}{l} \left(a_{1} {\otimes}  a_{2} {\otimes}  \ldots {\otimes}  a_{i} {\otimes} \left[\sum_{b_{1}, b_{2}, \ldots, b_{j}~|~Q\left(b_{1}, b_{2}, \ldots, b_{j}\right)}~\left(s\left(b_{1}, b_{2}, \ldots, b_{j}\right) \cdot f\left(b_{1}, b_{2}, \ldots, b_{j}\right)\right)\right]{\otimes} c_{1} {\otimes}  c_{2} {\otimes}  \ldots {\otimes}  c_{k}\right) \\  = \left[\sum_{b_{1}, b_{2}, \ldots, b_{j}~|~Q\left(b_{1}, b_{2}, \ldots, b_{j}\right)}~\left(s\left(b_{1}, b_{2}, \ldots, b_{j}\right) \cdot \left(a_{1} {\otimes}  a_{2} {\otimes}  \ldots {\otimes}  a_{i} {\otimes} f\left(b_{1}, b_{2}, \ldots, b_{j}\right){\otimes} c_{1} {\otimes}  c_{2} {\otimes}  \ldots {\otimes}  c_{k}\right)\right)\right] \end{array} \end{array}\right) \end{array} \end{array}\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
2ExprTuple42, 44
3Operationoperator: 4
operands: 5
4Literal
5ExprTuple6, 7
6Operationoperator: 8
operand: 12
7Operationoperator: 10
operands: 11
8Literal
9ExprTuple12
10Literal
11ExprTuple13, 14
12Lambdaparameters: 49
body: 15
13Operationoperator: 39
operands: 16
14Operationoperator: 23
operand: 20
15Conditionalvalue: 18
condition: 34
16ExprTuple42, 19, 44
17ExprTuple20
18Operationoperator: 21
operands: 22
19Operationoperator: 23
operand: 28
20Lambdaparameters: 49
body: 25
21Literal
22ExprTuple26, 27
23Literal
24ExprTuple28
25Conditionalvalue: 29
condition: 34
26Operationoperator: 39
operands: 30
27Variable
28Lambdaparameters: 49
body: 31
29Operationoperator: 36
operands: 32
30ExprTuple42, 33, 44
31Conditionalvalue: 33
condition: 34
32ExprTuple41, 35
33Operationoperator: 36
operands: 37
34Operationoperator: 38
operands: 49
35Operationoperator: 39
operands: 40
36Literal
37ExprTuple41, 43
38Variable
39Literal
40ExprTuple42, 43, 44
41Operationoperator: 45
operands: 49
42ExprRangelambda_map: 46
start_index: 57
end_index: 47
43Operationoperator: 48
operands: 49
44ExprRangelambda_map: 50
start_index: 57
end_index: 51
45Variable
46Lambdaparameter: 63
body: 52
47Variable
48Variable
49ExprTuple53
50Lambdaparameter: 63
body: 54
51Variable
52IndexedVarvariable: 55
index: 63
53ExprRangelambda_map: 56
start_index: 57
end_index: 58
54IndexedVarvariable: 59
index: 63
55Variable
56Lambdaparameter: 63
body: 60
57Literal
58Variable
59Variable
60IndexedVarvariable: 61
index: 63
61Variable
62ExprTuple63
63Variable