[Trac] [OpenMath] #43: CD fns1
OpenMath
trac at strawberry.eecs.jacobs-university.de
Wed Sep 3 13:31:55 CEST 2008
#43: CD fns1
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Reporter: jauecker | Owner: kohlhase
Type: proposal | Status: new
Priority: major | Milestone: CD3 Draft1
Component: CD3 Format | Version:
Keywords: | Include_gantt: 0
Dependencies: | Due_assign: YYYY/MM/DD
Due_close: YYYY/MM/DD |
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'''Chris:'''
I use 'range' for the image under the function of of the function's
domain (IOW, the set of values taken by the function); a synonym for
'image'.
I use 'codomain' for the (not a) set containing this 'range' that is
defined as the set that appears 'on the right-hand side of the arrow'.
Note that then: different codomain implies different function even if
they are otherwise identical.
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It says 'the identity function': does this imply uniqueness, the same
function for any set?
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Should we use 'left' and 'right' inverses in K-12 descriptions?
And what is 'right_compose' ???
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I have never thought of 'lambda' as anything to do with maths, which
managed for 500 years of specifying functions without it.
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--
Ticket URL: <https://trac.kwarc.info/OM3/ticket/43>
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