Statements:
No note is a coin.
Some coins are metals.
All plastics are notes.
Conclusions:
I. No coin is plastic.
II. All plastics being metals is a possibility.
All plastics are notes and no note is a coin => no coin is plastic => Conclusion 1 follows.
Some coins are metals => Some notes being metals is a possibility => All plastics being metals is a possibility => Conclusion 2 follows.
=> Both follow
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