Statements: All desks are benches.
No bench is a chair.
All chairs are roads.
Conclusions: I. Some roads are chairs.
II. No chair is a desk.
if only Conclusion I follows
if only Conclusion II follows
if either I or II follows
if neither I nor II follows
if both I and II follows
Statement
All tables are desks
All desks are chairs
Some chairs are sofas
Conclusions
I. Some sofas are tables
II. Some chairs are tables
III. Some desks are tables
Statements: L≥I;H>I≥J,K<J Conclusions: I. H > L II. L > K
Statements:
No wood is table.
Some tables are chairs.
All chairs are stones.
Conclusions:
I. No stone is wood.
II. Some stones are tables.