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Expression of type ExprTuple

from the theory of proveit.numbers.number_sets.natural_numbers

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, m, n
from proveit.logic import And, Forall
from proveit.numbers import NaturalPos, P_mAddOne, Pm, Pn, Pone
In [2]:
# build up the expression from sub-expressions
expr = ExprTuple(And(Pone, Forall(instance_param_or_params = [m], instance_expr = P_mAddOne, domain = NaturalPos, condition = Pm)), Forall(instance_param_or_params = [n], instance_expr = Pn, domain = NaturalPos))
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(P\left(1\right) \land \left[\forall_{m \in \mathbb{N}^+~|~P\left(m\right)}~P\left(m + 1\right)\right], \forall_{n \in \mathbb{N}^+}~P\left(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: 22
operands: 3
2Operationoperator: 9
operand: 7
3ExprTuple5, 6
4ExprTuple7
5Operationoperator: 31
operand: 33
6Operationoperator: 9
operand: 12
7Lambdaparameter: 20
body: 11
8ExprTuple33
9Literal
10ExprTuple12
11Conditionalvalue: 13
condition: 14
12Lambdaparameter: 35
body: 15
13Operationoperator: 31
operand: 20
14Operationoperator: 29
operands: 17
15Conditionalvalue: 18
condition: 19
16ExprTuple20
17ExprTuple20, 34
18Operationoperator: 31
operand: 24
19Operationoperator: 22
operands: 23
20Variable
21ExprTuple24
22Literal
23ExprTuple25, 26
24Operationoperator: 27
operands: 28
25Operationoperator: 29
operands: 30
26Operationoperator: 31
operand: 35
27Literal
28ExprTuple35, 33
29Literal
30ExprTuple35, 34
31Variable
32ExprTuple35
33Literal
34Literal
35Variable