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Expression of type ExprTuple

from the theory of proveit.logic.booleans.quantification.existence

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 ExprTuple
from proveit.logic.booleans.quantification import general_forall_Px_if_Qx, general_notexists_notPy_st_Qy
In [2]:
# build up the expression from sub-expressions
expr = ExprTuple(general_forall_Px_if_Qx, general_notexists_notPy_st_Qy)
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_{x_{1}, x_{2}, \ldots, x_{n}~|~Q\left(x_{1}, x_{2}, \ldots, x_{n}\right)}~P\left(x_{1}, x_{2}, \ldots, x_{n}\right), \nexists_{y_{1}, y_{2}, \ldots, y_{n}~|~Q\left(y_{1}, y_{2}, \ldots, y_{n}\right)}~(\lnot P\left(y_{1}, y_{2}, \ldots, y_{n}\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
operand: 8
3Literal
4ExprTuple7
5Literal
6ExprTuple8
7Lambdaparameters: 15
body: 9
8Lambdaparameters: 23
body: 10
9Conditionalvalue: 11
condition: 12
10Conditionalvalue: 13
condition: 14
11Operationoperator: 22
operands: 15
12Operationoperator: 18
operands: 15
13Operationoperator: 16
operand: 20
14Operationoperator: 18
operands: 23
15ExprTuple19
16Literal
17ExprTuple20
18Variable
19ExprRangelambda_map: 21
start_index: 28
end_index: 29
20Operationoperator: 22
operands: 23
21Lambdaparameter: 33
body: 24
22Variable
23ExprTuple25
24IndexedVarvariable: 26
index: 33
25ExprRangelambda_map: 27
start_index: 28
end_index: 29
26Variable
27Lambdaparameter: 33
body: 30
28Literal
29Variable
30IndexedVarvariable: 31
index: 33
31Variable
32ExprTuple33
33Variable