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Expression of type Conditional

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, a, b, c
from proveit.logic import And, Equals, InSet, NotEquals
from proveit.numbers import Complex, Exp, Mult, Real, zero
In [2]:
# build up the expression from sub-expressions
expr = Conditional(Equals(Exp(Mult(a, b), c), Mult(Exp(a, c), Exp(b, c))), And(InSet(a, Complex), InSet(b, Complex), InSet(c, Real), NotEquals(a, zero), 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 \cdot b\right)^{c} = \left(a^{c} \cdot b^{c}\right) \textrm{ if } a \in \mathbb{C} ,  b \in \mathbb{C} ,  c \in \mathbb{R} ,  a \neq 0 ,  b \neq 0\right..
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
condition_delimiter'comma' or 'and'commacomma('with_comma_delimiter', 'with_conjunction_delimiter')
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Conditionalvalue: 1
condition: 2
1Operationoperator: 3
operands: 4
2Operationoperator: 5
operands: 6
3Literal
4ExprTuple7, 8
5Literal
6ExprTuple9, 10, 11, 12, 13
7Operationoperator: 32
operands: 14
8Operationoperator: 29
operands: 15
9Operationoperator: 18
operands: 16
10Operationoperator: 18
operands: 17
11Operationoperator: 18
operands: 19
12Operationoperator: 21
operands: 20
13Operationoperator: 21
operands: 22
14ExprTuple23, 36
15ExprTuple24, 25
16ExprTuple34, 26
17ExprTuple35, 26
18Literal
19ExprTuple36, 27
20ExprTuple34, 28
21Literal
22ExprTuple35, 28
23Operationoperator: 29
operands: 30
24Operationoperator: 32
operands: 31
25Operationoperator: 32
operands: 33
26Literal
27Literal
28Literal
29Literal
30ExprTuple34, 35
31ExprTuple34, 36
32Literal
33ExprTuple35, 36
34Variable
35Variable
36Variable