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Expression of type Equals

from the theory of proveit.numbers.multiplication

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 a, b, c, d
from proveit.logic import Equals
from proveit.numbers import Add, Exp, Mult
In [2]:
# build up the expression from sub-expressions
expr = Equals(Mult(Exp(a, c), Exp(a, b), Exp(a, d)), Exp(a, Add(c, b, d)))
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(a^{c} \cdot a^{b} \cdot a^{d}\right) = a^{c + b + d}
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: 1
operands: 2
1Literal
2ExprTuple3, 4
3Operationoperator: 5
operands: 6
4Operationoperator: 14
operands: 7
5Literal
6ExprTuple8, 9, 10
7ExprTuple18, 11
8Operationoperator: 14
operands: 12
9Operationoperator: 14
operands: 13
10Operationoperator: 14
operands: 15
11Operationoperator: 16
operands: 17
12ExprTuple18, 19
13ExprTuple18, 20
14Literal
15ExprTuple18, 21
16Literal
17ExprTuple19, 20, 21
18Variable
19Variable
20Variable
21Variable