(i) All streets are paths→Universal Affirmative (Atype).
(ii) Some streets are roads →Particular Affirmative (Itype).
(iii) No movie is a theatre →Universal Negative (Etype).(iv) Some movies are not theatres→ Particular Negative(O-type).
(4) Some roads are streets.
All streets are paths.
I + A ⇒ I–type of Conclusion“Some roads are paths”.
Conclusion II is the Converseof it.
Some streets are roads.
All roads are trails.I + A I–type of Conclusion“Some streets are trails.”
Some paths are roads.
All roads are trails.
I + A ⇒ I–type of Conclusion“Some paths are trails”.
Venn diagrams of “Somepaths are trails”.
Venn diagram III supports theConclusion I.