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Expression of type ExprTuple

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 ExprRange, ExprTuple, Function, Q, Variable, j, k
from proveit.logic import And, Forall
from proveit.numbers import Interval
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
sub_expr2 = [sub_expr1]
sub_expr3 = Function(Q, sub_expr2)
expr = ExprTuple(Forall(instance_param_or_params = sub_expr2, instance_expr = sub_expr3, domain = Interval(j, k)), And(ExprRange(sub_expr1, sub_expr3, j, k)))
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(\forall_{{_{-}a} \in \{j~\ldotp \ldotp~k\}}~Q\left({_{-}a}\right), Q\left(j\right) \land  Q\left(j + 1\right) \land  \ldots \land  Q\left(k\right)\right)
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
wrap_positionsposition(s) at which wrapping is to occur; 'n' is after the nth comma.()()('with_wrapping_at',)
justificationif any wrap positions are set, justify to the 'left', 'center', or 'right'leftleft('with_justification',)
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0ExprTuple1, 2
1Operationoperator: 3
operand: 7
2Operationoperator: 5
operands: 6
3Literal
4ExprTuple7
5Literal
6ExprTuple8
7Lambdaparameter: 18
body: 9
8ExprRangelambda_map: 10
start_index: 21
end_index: 22
9Conditionalvalue: 12
condition: 11
10Lambdaparameter: 18
body: 12
11Operationoperator: 13
operands: 14
12Operationoperator: 15
operand: 18
13Literal
14ExprTuple18, 17
15Variable
16ExprTuple18
17Operationoperator: 19
operands: 20
18Variable
19Literal
20ExprTuple21, 22
21Variable
22Variable