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Expression of type InSet

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 import B
from proveit.core_expr_types import A_1_to_m, C_1_to_n
from proveit.logic import Boolean, InSet, Or
In [2]:
# build up the expression from sub-expressions
expr = InSet(Or(A_1_to_m, B, C_1_to_n), 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())
\left(A_{1} \lor  A_{2} \lor  \ldots \lor  A_{m} \lor B\lor C_{1} \lor  C_{2} \lor  \ldots \lor  C_{n}\right) \in \mathbb{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: 5
operands: 6
4Literal
5Literal
6ExprTuple7, 8, 9
7ExprRangelambda_map: 10
start_index: 13
end_index: 11
8Variable
9ExprRangelambda_map: 12
start_index: 13
end_index: 14
10Lambdaparameter: 20
body: 15
11Variable
12Lambdaparameter: 20
body: 16
13Literal
14Variable
15IndexedVarvariable: 17
index: 20
16IndexedVarvariable: 18
index: 20
17Variable
18Variable
19ExprTuple20
20Variable