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Expression of type Or

from the theory of proveit.logic.sets.inclusion

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 x
from proveit.logic import Equals, Or
from proveit.numbers import five, four, one, three, two
In [2]:
# build up the expression from sub-expressions
expr = Or(Equals(x, one), Equals(x, three), Equals(x, five), Equals(x, two), Equals(x, four))
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(x = 1\right) \lor \left(x = 3\right) \lor \left(x = 5\right) \lor \left(x = 2\right) \lor \left(x = 4\right)
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',)
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 1
operands: 2
1Literal
2ExprTuple3, 4, 5, 6, 7
3Operationoperator: 12
operands: 8
4Operationoperator: 12
operands: 9
5Operationoperator: 12
operands: 10
6Operationoperator: 12
operands: 11
7Operationoperator: 12
operands: 13
8ExprTuple18, 14
9ExprTuple18, 15
10ExprTuple18, 16
11ExprTuple18, 17
12Literal
13ExprTuple18, 19
14Literal
15Literal
16Literal
17Literal
18Variable
19Literal