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Expression of type Implies

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, Implies, Or
from proveit.numbers import five, four, one, three, two
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Equals(x, one)
sub_expr2 = Equals(x, three)
sub_expr3 = Equals(x, five)
expr = Implies(Or(sub_expr1, sub_expr2, sub_expr3), Or(sub_expr1, Equals(x, two), sub_expr2, Equals(x, four), sub_expr3))
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(\left(x = 1\right) \lor \left(x = 3\right) \lor \left(x = 5\right)\right) \Rightarrow \left(\left(x = 1\right) \lor \left(x = 2\right) \lor \left(x = 3\right) \lor \left(x = 4\right) \lor \left(x = 5\right)\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',)
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: 6
operands: 5
4Operationoperator: 6
operands: 7
5ExprTuple8, 10, 12
6Literal
7ExprTuple8, 9, 10, 11, 12
8Operationoperator: 17
operands: 13
9Operationoperator: 17
operands: 14
10Operationoperator: 17
operands: 15
11Operationoperator: 17
operands: 16
12Operationoperator: 17
operands: 18
13ExprTuple23, 19
14ExprTuple23, 20
15ExprTuple23, 21
16ExprTuple23, 22
17Literal
18ExprTuple23, 24
19Literal
20Literal
21Literal
22Literal
23Variable
24Literal