Issue 6553: Clarify the semantics of forAll (ocl2-rtf)
Source:  (, )
Nature: Uncategorized Issue
Severity: 
Summary: Author: Hubert Baumeister (baumeist@informatik.uni-muenchen.de),
Rolf Hennicker (hennicke@informatik.uni-muenchen.de),
Alexander Knapp (knapp@informatik.uni-muenchen.de)
Description: Clarify the semantics of forAll
Rationale:
According to the informal explanation (page 6-16) the following Expression Set { 1 }->forAll(x | x/0 < 0) would evaluate to false. However, according to the OCL definition it evaluates to undefined. Thus we propose to omit "otherwise, result is false" in the informal explanation.

Resolution: The resolution for this becomes more complex with null/invalid rather than undefined. The resolution is in 17531.
Disposition: See issue 17531 for disposition
Revised Text: 
Actions taken:
November 11, 2003: received issue
December 23, 2013: closed issue
Discussion: 

End of Annotations:=====
larify the semantics of forAll
Author: Hubert Baumeister (baumeist@informatik.uni-muenchen.de),
Rolf Hennicker (hennicke@informatik.uni-muenchen.de),
Alexander Knapp (knapp@informatik.uni-muenchen.de)
Description: Clarify the semantics of forAll
Rationale:
According to the informal explanation (page 6-16) the following Expression Set { 1 }->forAll(x | x/0 < 0) would evaluate to false. However, according to the OCL definition it evaluates to undefined. Thus we propose to omit "otherwise, result is false" in the informal explanation.