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Expression of type ExprTuple

from the theory of proveit.numbers.integration

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, Lambda, e, l, t
from proveit.logic import InSet
from proveit.numbers import Exp, IntervalCC, Real, frac, one, subtract, two
In [2]:
# build up the expression from sub-expressions
expr = ExprTuple(Lambda(l, Conditional(InSet(frac(one, Exp(l, two)), Real), InSet(l, IntervalCC(e, subtract(Exp(two, subtract(t, one)), one))))))
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(l \mapsto \left\{\frac{1}{l^{2}} \in \mathbb{R} \textrm{ if } l \in \left[e,2^{t - 1} - 1\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
1Lambdaparameter: 21
body: 3
2ExprTuple21
3Conditionalvalue: 4
condition: 5
4Operationoperator: 7
operands: 6
5Operationoperator: 7
operands: 8
6ExprTuple9, 10
7Literal
8ExprTuple21, 11
9Operationoperator: 12
operands: 13
10Literal
11Operationoperator: 14
operands: 15
12Literal
13ExprTuple33, 16
14Literal
15ExprTuple17, 18
16Operationoperator: 23
operands: 19
17Variable
18Operationoperator: 27
operands: 20
19ExprTuple21, 25
20ExprTuple22, 30
21Variable
22Operationoperator: 23
operands: 24
23Literal
24ExprTuple25, 26
25Literal
26Operationoperator: 27
operands: 28
27Literal
28ExprTuple29, 30
29Variable
30Operationoperator: 31
operand: 33
31Literal
32ExprTuple33
33Literal