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Expression of type Forall

from the theory of proveit.logic.booleans.disjunction

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.core_expr_types import A_1_to_m, C_1_to_n
from proveit.logic import Boolean, Equals, Forall, Or, TRUE
In [2]:
# build up the expression from sub-expressions
expr = Forall(instance_param_or_params = [A_1_to_m, C_1_to_n], instance_expr = Equals(Or(A_1_to_m, TRUE, C_1_to_n), TRUE), domain = Boolean)
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_{m}, C_{1}, C_{2}, \ldots, C_{n} \in \mathbb{B}}~\left(\left(A_{1} \lor  A_{2} \lor  \ldots \lor  A_{m} \lor \top\lor C_{1} \lor  C_{2} \lor  \ldots \lor  C_{n}\right) = \top\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: 4
body: 5
4ExprTuple19, 21
5Conditionalvalue: 6
condition: 7
6Operationoperator: 8
operands: 9
7Operationoperator: 10
operands: 11
8Literal
9ExprTuple12, 20
10Literal
11ExprTuple13, 14
12Operationoperator: 15
operands: 16
13ExprRangelambda_map: 17
start_index: 27
end_index: 25
14ExprRangelambda_map: 18
start_index: 27
end_index: 28
15Literal
16ExprTuple19, 20, 21
17Lambdaparameter: 38
body: 22
18Lambdaparameter: 38
body: 23
19ExprRangelambda_map: 24
start_index: 27
end_index: 25
20Literal
21ExprRangelambda_map: 26
start_index: 27
end_index: 28
22Operationoperator: 30
operands: 29
23Operationoperator: 30
operands: 31
24Lambdaparameter: 38
body: 32
25Variable
26Lambdaparameter: 38
body: 33
27Literal
28Variable
29ExprTuple32, 34
30Literal
31ExprTuple33, 34
32IndexedVarvariable: 35
index: 38
33IndexedVarvariable: 36
index: 38
34Literal
35Variable
36Variable
37ExprTuple38
38Variable