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Expression of type Conditional

from the theory of proveit.logic.booleans.conjunction

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 C, Conditional
from proveit.core_expr_types import A_1_to_l, B_1_to_m, D_1_to_n
from proveit.logic import And
In [2]:
# build up the expression from sub-expressions
expr = Conditional(And(A_1_to_l, C, B_1_to_m, D_1_to_n), And(A_1_to_l, B_1_to_m, C, D_1_to_n))
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} \land  A_{2} \land  \ldots \land  A_{l} \land C\land B_{1} \land  B_{2} \land  \ldots \land  B_{m}\land D_{1} \land  D_{2} \land  \ldots \land  D_{n} \textrm{ if } A_{1} ,  A_{2} ,  \ldots ,  A_{l}, B_{1} ,  B_{2} ,  \ldots ,  B_{m} ,  C, D_{1} ,  D_{2} ,  \ldots ,  D_{n}\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
3ExprTuple6, 8, 7, 9
4Literal
5ExprTuple6, 7, 8, 9
6ExprRangelambda_map: 10
start_index: 15
end_index: 11
7ExprRangelambda_map: 12
start_index: 15
end_index: 13
8Variable
9ExprRangelambda_map: 14
start_index: 15
end_index: 16
10Lambdaparameter: 24
body: 17
11Variable
12Lambdaparameter: 24
body: 18
13Variable
14Lambdaparameter: 24
body: 19
15Literal
16Variable
17IndexedVarvariable: 20
index: 24
18IndexedVarvariable: 21
index: 24
19IndexedVarvariable: 22
index: 24
20Variable
21Variable
22Variable
23ExprTuple24
24Variable