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Expression of type InSet

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 fi, i, y
from proveit.linear_algebra import TensorProd, VecSum
from proveit.logic import CartExp, InSet
from proveit.numbers import Interval, Real, four, three, two
In [2]:
# build up the expression from sub-expressions
sub_expr1 = CartExp(Real, three)
expr = InSet(VecSum(index_or_indices = [i], summand = TensorProd(y, fi), domain = Interval(two, four)), TensorProd(sub_expr1, sub_expr1))
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(\sum_{i=2}^{4} \left(y {\otimes} f\left(i\right)\right)\right) \in \left(\mathbb{R}^{3} {\otimes} \mathbb{R}^{3}\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',)
directionDirection of the relation (normal or reversed)normalnormal('with_direction_reversed', 'is_reversed')
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 18
operands: 1
1ExprTuple2, 3
2Operationoperator: 4
operand: 7
3Operationoperator: 16
operands: 6
4Literal
5ExprTuple7
6ExprTuple8, 8
7Lambdaparameter: 27
body: 9
8Operationoperator: 10
operands: 11
9Conditionalvalue: 12
condition: 13
10Literal
11ExprTuple14, 15
12Operationoperator: 16
operands: 17
13Operationoperator: 18
operands: 19
14Literal
15Literal
16Literal
17ExprTuple20, 21
18Literal
19ExprTuple27, 22
20Variable
21Operationoperator: 23
operand: 27
22Operationoperator: 25
operands: 26
23Variable
24ExprTuple27
25Literal
26ExprTuple28, 29
27Variable
28Literal
29Literal