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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 Conditional, 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
from proveit.logic import InSet
In [2]:
# build up the expression from sub-expressions
sub_expr1 = [b_1_to_j]
expr = ExprTuple(Lambda(sub_expr1, Conditional(InSet(TensorProd(a_1_to_i, ScalarMult(Function(s, sub_expr1), f__b_1_to_j), c_1_to_k), V), Q__b_1_to_j)))
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(b_{1}, b_{2}, \ldots, b_{j}\right) \mapsto \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 \textrm{ if } Q\left(b_{1}, b_{2}, \ldots, b_{j}\right)\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: 28
body: 2
2Conditionalvalue: 3
condition: 4
3Operationoperator: 5
operands: 6
4Operationoperator: 7
operands: 28
5Literal
6ExprTuple8, 9
7Variable
8Operationoperator: 10
operands: 11
9Variable
10Literal
11ExprTuple12, 13, 14
12ExprRangelambda_map: 15
start_index: 32
end_index: 16
13Operationoperator: 17
operands: 18
14ExprRangelambda_map: 19
start_index: 32
end_index: 20
15Lambdaparameter: 37
body: 21
16Variable
17Literal
18ExprTuple22, 23
19Lambdaparameter: 37
body: 24
20Variable
21IndexedVarvariable: 25
index: 37
22Operationoperator: 26
operands: 28
23Operationoperator: 27
operands: 28
24IndexedVarvariable: 29
index: 37
25Variable
26Variable
27Variable
28ExprTuple30
29Variable
30ExprRangelambda_map: 31
start_index: 32
end_index: 33
31Lambdaparameter: 37
body: 34
32Literal
33Variable
34IndexedVarvariable: 35
index: 37
35Variable
36ExprTuple37
37Variable