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Expression of type ExprTuple

from the theory of proveit.numbers.division

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, Py, S, y, z
from proveit.numbers import Sum, frac
In [2]:
# build up the expression from sub-expressions
sub_expr1 = [y]
expr = ExprTuple(frac(Sum(index_or_indices = sub_expr1, summand = Py, domain = S), z), Sum(index_or_indices = sub_expr1, summand = frac(Py, z), domain = S))
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(\frac{\sum_{y \in S}~P\left(y\right)}{z}, \sum_{y \in S}~\frac{P\left(y\right)}{z}\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: 13
operands: 3
2Operationoperator: 7
operand: 6
3ExprTuple5, 17
4ExprTuple6
5Operationoperator: 7
operand: 10
6Lambdaparameter: 23
body: 9
7Literal
8ExprTuple10
9Conditionalvalue: 11
condition: 15
10Lambdaparameter: 23
body: 12
11Operationoperator: 13
operands: 14
12Conditionalvalue: 16
condition: 15
13Literal
14ExprTuple16, 17
15Operationoperator: 18
operands: 19
16Operationoperator: 20
operand: 23
17Variable
18Literal
19ExprTuple23, 22
20Variable
21ExprTuple23
22Variable
23Variable