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Expression of type Forall

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 b
from proveit.core_expr_types import a_1_to_i, c_1_to_j
from proveit.logic import Equals, Forall
from proveit.numbers import Complex, Mult, Neg
In [2]:
# build up the expression from sub-expressions
expr = Forall(instance_param_or_params = [a_1_to_i, b, c_1_to_j], instance_expr = Equals(Mult(a_1_to_i, Neg(b), c_1_to_j), Neg(Mult(a_1_to_i, b, c_1_to_j))), domain = Complex)
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())
\forall_{a_{1}, a_{2}, \ldots, a_{i}, b, c_{1}, c_{2}, \ldots, c_{j} \in \mathbb{C}}~\left(\left(a_{1} \cdot  a_{2} \cdot  \ldots \cdot  a_{i} \cdot \left(-b\right)\cdot c_{1} \cdot  c_{2} \cdot  \ldots \cdot  c_{j}\right) = \left(-\left(a_{1} \cdot  a_{2} \cdot  \ldots \cdot  a_{i} \cdot b\cdot c_{1} \cdot  c_{2} \cdot  \ldots \cdot  c_{j}\right)\right)\right)
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
with_wrappingIf 'True', wrap the Expression after the parametersNoneNone/False('with_wrapping',)
condition_wrappingWrap 'before' or 'after' the condition (or None).NoneNone/False('with_wrap_after_condition', 'with_wrap_before_condition')
wrap_paramsIf 'True', wraps every two parameters AND wraps the Expression after the parametersNoneNone/False('with_params',)
justificationjustify to the 'left', 'center', or 'right' in the array cellscentercenter('with_justification',)
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 1
operand: 3
1Literal
2ExprTuple3
3Lambdaparameters: 28
body: 4
4Conditionalvalue: 5
condition: 6
5Operationoperator: 7
operands: 8
6Operationoperator: 9
operands: 10
7Literal
8ExprTuple11, 12
9Literal
10ExprTuple13, 14, 15
11Operationoperator: 27
operands: 16
12Operationoperator: 25
operand: 22
13ExprRangelambda_map: 18
start_index: 39
end_index: 37
14Operationoperator: 30
operands: 19
15ExprRangelambda_map: 20
start_index: 39
end_index: 40
16ExprTuple32, 21, 34
17ExprTuple22
18Lambdaparameter: 46
body: 23
19ExprTuple33, 35
20Lambdaparameter: 46
body: 24
21Operationoperator: 25
operand: 33
22Operationoperator: 27
operands: 28
23Operationoperator: 30
operands: 29
24Operationoperator: 30
operands: 31
25Literal
26ExprTuple33
27Literal
28ExprTuple32, 33, 34
29ExprTuple41, 35
30Literal
31ExprTuple42, 35
32ExprRangelambda_map: 36
start_index: 39
end_index: 37
33Variable
34ExprRangelambda_map: 38
start_index: 39
end_index: 40
35Literal
36Lambdaparameter: 46
body: 41
37Variable
38Lambdaparameter: 46
body: 42
39Literal
40Variable
41IndexedVarvariable: 43
index: 46
42IndexedVarvariable: 44
index: 46
43Variable
44Variable
45ExprTuple46
46Variable