New in version 2.0.
True when expr is a sequence and the elements in expr increase strictly:
abjad> from abjad.tools import sequencetools
abjad> expr = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
abjad> sequencetools.is_strictly_increasing_sequence(expr)
True
False when expr is a sequence and the elements in expr do not increase strictly:
abjad> expr = [9, 8, 7, 6, 5, 4, 3, 2, 1, 0]
abjad> sequencetools.is_strictly_increasing_sequence(expr)
False
abjad> expr = [3, 3, 3, 3, 3, 3, 3, 2, 1, 0]
abjad> sequencetools.is_strictly_increasing_sequence(expr)
False
abjad> expr = [3, 3, 3, 3, 3, 3, 3, 3, 3, 3]
abjad> sequencetools.is_strictly_increasing_sequence(expr)
False
abjad> expr = [0, 1, 2, 3, 3, 3, 3, 3, 3, 3]
abjad> sequencetools.is_strictly_increasing_sequence(expr)
False
True when expr is an empty sequence:
abjad> sequencetools.is_strictly_increasing_sequence([])
True
False when expr is not a sequence:
abjad> sequencetools.is_strictly_increasing_sequence(17)
False
Return boolean.