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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 Exp, Mult, four, frac, one, sqrt, three, two
In [2]:
# build up the expression from sub-expressions
sub_expr1 = sqrt(b)
expr = Equals(Mult(a, sub_expr1, two, Exp(d, two), frac(two, three), c), frac(Mult(d, b, four, a, frac(one, three), d, c), sub_expr1))
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 \cdot \sqrt{b} \cdot 2 \cdot d^{2} \cdot \frac{2}{3} \cdot c\right) = \frac{d \cdot b \cdot 4 \cdot a \cdot \frac{1}{3} \cdot d \cdot c}{\sqrt{b}}
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: 13
operands: 5
4Operationoperator: 25
operands: 6
5ExprTuple18, 10, 29, 7, 8, 21
6ExprTuple9, 10
7Operationoperator: 15
operands: 11
8Operationoperator: 25
operands: 12
9Operationoperator: 13
operands: 14
10Operationoperator: 15
operands: 16
11ExprTuple20, 29
12ExprTuple29, 27
13Literal
14ExprTuple20, 22, 17, 18, 19, 20, 21
15Literal
16ExprTuple22, 23
17Literal
18Variable
19Operationoperator: 25
operands: 24
20Variable
21Variable
22Variable
23Operationoperator: 25
operands: 26
24ExprTuple28, 27
25Literal
26ExprTuple28, 29
27Literal
28Literal
29Literal