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In [1]:
import proveit
# Automation is not needed when only building an expression:
proveit.defaults.automation = False # This will speed things up.
proveit.defaults.inline_pngs = False # Makes files smaller.
%load_theorem_expr # Load the stored theorem expression as 'stored_expr'
# import the special expression
from proveit.core_expr_types.tuples import len_of_empty_range_of_ranges
In [2]:
# check that the built expression is the same as the stored expression
assert len_of_empty_range_of_ranges.expr == stored_expr
assert len_of_empty_range_of_ranges.expr._style_id == stored_expr._style_id
print("Passed sanity check: len_of_empty_range_of_ranges matches stored_expr")
Passed sanity check: len_of_empty_range_of_ranges matches stored_expr
In [3]:
# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())
\forall_{m, n \in \mathbb{N}~|~\left(n + 1\right) = m}~\left[\forall_{f, i, j}~\left(\begin{array}{c} \begin{array}{l} |\left(f\left(m, i\left(m\right)\right), f\left(m, i\left(m\right) + 1\right), \ldots, f\left(m, j\left(m\right)\right), f\left(m + 1, i\left(m + 1\right)\right), f\left(m + 1, i\left(m + 1\right) + 1\right), \ldots, f\left(m + 1, j\left(m + 1\right)\right), \ldots\ldots, f\left(n, i\left(n\right)\right), f\left(n, i\left(n\right) + 1\right), \ldots, f\left(n, j\left(n\right)\right)\right)| \\  = 0 \end{array} \end{array}\right)\right]
In [4]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
with_wrappingIf 'True', wrap the Expression after the parametersNoneNone/False('with_wrapping',)
condition_wrappingWrap 'before' or 'after' the condition (or None).NoneNone/False('with_wrap_after_condition', 'with_wrap_before_condition')
wrap_paramsIf 'True', wraps every two parameters AND wraps the Expression after the parametersNoneNone/False('with_params',)
justificationjustify to the 'left', 'center', or 'right' in the array cellscentercenter('with_justification',)
In [5]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 7
operand: 2
1ExprTuple2
2Lambdaparameters: 3
body: 4
3ExprTuple34, 35
4Conditionalvalue: 5
condition: 6
5Operationoperator: 7
operand: 11
6Operationoperator: 9
operands: 10
7Literal
8ExprTuple11
9Literal
10ExprTuple12, 13, 14
11Lambdaparameters: 15
body: 16
12Operationoperator: 18
operands: 17
13Operationoperator: 18
operands: 19
14Operationoperator: 21
operands: 20
15ExprTuple45, 42, 43
16Operationoperator: 21
operands: 22
17ExprTuple34, 23
18Literal
19ExprTuple35, 23
20ExprTuple24, 34
21Literal
22ExprTuple25, 26
23Literal
24Operationoperator: 27
operands: 28
25Operationoperator: 29
operands: 30
26Literal
27Literal
28ExprTuple35, 31
29Literal
30ExprTuple32
31Literal
32ExprRangelambda_map: 33
start_index: 34
end_index: 35
33Lambdaparameter: 47
body: 36
34Variable
35Variable
36ExprRangelambda_map: 37
start_index: 38
end_index: 39
37Lambdaparameter: 48
body: 41
38Operationoperator: 42
operand: 47
39Operationoperator: 43
operand: 47
40ExprTuple48
41Operationoperator: 45
operands: 46
42Variable
43Variable
44ExprTuple47
45Variable
46ExprTuple47, 48
47Variable
48Variable