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Expression of type ExprTuple

from the theory of proveit.numbers.exponentiation

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, a, b, n
from proveit.logic import And, Equals, InSet, NotEquals
from proveit.numbers import Complex, Exp, NaturalPos, frac, zero
In [2]:
# build up the expression from sub-expressions
expr = ExprTuple(Lambda([a, b, n], Conditional(Equals(Exp(frac(a, b), n), frac(Exp(a, n), Exp(b, n))), And(InSet(a, Complex), InSet(b, Complex), InSet(n, NaturalPos), NotEquals(b, zero)))))
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, b, n\right) \mapsto \left\{\left(\frac{a}{b}\right)^{n} = \frac{a^{n}}{b^{n}} \textrm{ if } a \in \mathbb{C} ,  b \in \mathbb{C} ,  n \in \mathbb{N}^+ ,  b \neq 0\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
2ExprTuple35, 36, 37
3Conditionalvalue: 4
condition: 5
4Operationoperator: 6
operands: 7
5Operationoperator: 8
operands: 9
6Literal
7ExprTuple10, 11
8Literal
9ExprTuple12, 13, 14, 15
10Operationoperator: 33
operands: 16
11Operationoperator: 30
operands: 17
12Operationoperator: 20
operands: 18
13Operationoperator: 20
operands: 19
14Operationoperator: 20
operands: 21
15Operationoperator: 22
operands: 23
16ExprTuple24, 37
17ExprTuple25, 26
18ExprTuple35, 27
19ExprTuple36, 27
20Literal
21ExprTuple37, 28
22Literal
23ExprTuple36, 29
24Operationoperator: 30
operands: 31
25Operationoperator: 33
operands: 32
26Operationoperator: 33
operands: 34
27Literal
28Literal
29Literal
30Literal
31ExprTuple35, 36
32ExprTuple35, 37
33Literal
34ExprTuple36, 37
35Variable
36Variable
37Variable