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using # needs in posets folder #36114

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Merged
merged 5 commits into from
Aug 27, 2023
Merged

using # needs in posets folder #36114

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bfb6a88
using needs in posets folder
fchapoton Aug 22, 2023
d6eb09d
Merge branch 'develop' into needs_in_posets
fchapoton Aug 25, 2023
dd3bc96
moving optional into blocks
fchapoton Aug 25, 2023
699024b
more details in needs annotations in posets
fchapoton Aug 25, 2023
b42148c
add forgotton diese in posets
fchapoton Aug 26, 2023
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29 changes: 15 additions & 14 deletions src/sage/combinat/posets/elements.py
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
# sage.doctest: needs sage.modules
r"""
Elements of posets, lattices, semilattices, etc.
"""
Expand Down Expand Up @@ -78,13 +79,13 @@ def _latex_(self):

EXAMPLES::

sage: m = matrix(2, [1,2,3,4]) # optional - sage.modules
sage: m.set_immutable() # optional - sage.modules
sage: P = Poset(([m],[]), facade=False) # optional - sage.modules
sage: [e] = P # optional - sage.modules
sage: type(e) # optional - sage.modules
sage: m = matrix(2, [1,2,3,4])
sage: m.set_immutable()
sage: P = Poset(([m],[]), facade=False)
sage: [e] = P
sage: type(e)
<class 'sage.combinat.posets.posets.FinitePoset_with_category.element_class'>
sage: latex(e) #indirect doctest # optional - sage.modules
sage: latex(e) #indirect doctest
\left(\begin{array}{rr}
1 & 2 \\
3 & 4
Expand Down Expand Up @@ -244,13 +245,13 @@ def __mul__(self, other):
EXAMPLES::

sage: D = posets.DiamondPoset(5, facade=False)
sage: D(1) * D(2) # optional - sage.modules
sage: D(1) * D(2)
0
sage: D(1) * D(1) # optional - sage.modules
sage: D(1) * D(1)
1
sage: D(1) * D(0) # optional - sage.modules
sage: D(1) * D(0)
0
sage: D(1) * D(4) # optional - sage.modules
sage: D(1) * D(4)
1
"""
return self.parent().meet(self, other)
Expand All @@ -264,13 +265,13 @@ def __add__(self, other):
EXAMPLES::

sage: D = posets.DiamondPoset(5,facade=False)
sage: D(1) + D(2) # optional - sage.modules
sage: D(1) + D(2)
4
sage: D(1) + D(1) # optional - sage.modules
sage: D(1) + D(1)
1
sage: D(1) + D(4) # optional - sage.modules
sage: D(1) + D(4)
4
sage: D(1) + D(0) # optional - sage.modules
sage: D(1) + D(0)
1
"""
return self.parent().join(self, other)
Expand Down
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