Exercise 2.8 - Answers

1	The following are all possible:             [[J®M]Ù[PÚS]]             [[[J®M]ÙP]ÚS]             [[[JÙP]®M]ÚS]             [[[JÙP]ÚS]®M]             [[JÙ[PÚS]]®M] If you think that the "or" might be exclusive, that would produce another five possibilities.
2	The scopes are as follows:             First occurrence of ¬: ¬[[P«[QÚ¬¬R]]®[QÙS]]             Second occurrence of ¬: ¬¬R             Third occurrence of ¬: ¬R             The occurrence of «: [P«[QÚ¬¬R]]             The occurrence of Ú: [QÚ¬¬R]             The occurrence of  ®: [[P«[QÚ¬¬R]]®[QÙS]]             The occurrence of Ù: [QÙS].

Close Window