[New-bugs-announce] [issue17920] Documentation: "complete ordering" should be "total ordering"

abcdef report at bugs.python.org
Mon May 6 22:22:51 CEST 2013


New submission from abcdef:

The set documentation [http://docs.python.org/3.4/library/stdtypes.html] states

"The subset and equality comparisons do not generalize to a complete ordering function. For example, any two disjoint sets are not equal and are not subsets of each other..."

Could "complete ordering" be changed to "total ordering"? This is the correct mathematical terminology. A total ordering is one where every pair is comparable. A complete ordering is one where each bounded subset has a supremum/infimum (for example, reals form a complete ordered field). This can be verified at Wikipedia [http://en.wikipedia.org/wiki/Total_order] and essentially every set theory book.

----------
assignee: docs at python
components: Documentation
messages: 188585
nosy: abcdef, docs at python
priority: normal
severity: normal
status: open
title: Documentation: "complete ordering" should be "total ordering"
type: enhancement
versions: Python 2.7, Python 3.3, Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17920>
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