logo

Expression of type Conditional

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 Conditional, b, d, g, x
from proveit.logic import InSet, Set
In [2]:
# build up the expression from sub-expressions
expr = Conditional(InSet(x, Set(b, d, g)), InSet(x, Set(b, g)))
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 \in \left\{b, d, g\right\} \textrm{ if } x \in \left\{b, g\right\}\right..
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
condition_delimiter'comma' or 'and'commacomma('with_comma_delimiter', 'with_conjunction_delimiter')
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Conditionalvalue: 1
condition: 2
1Operationoperator: 4
operands: 3
2Operationoperator: 4
operands: 5
3ExprTuple7, 6
4Literal
5ExprTuple7, 8
6Operationoperator: 10
operands: 9
7Variable
8Operationoperator: 10
operands: 11
9ExprTuple13, 12, 14
10Literal
11ExprTuple13, 14
12Variable
13Variable
14Variable