Chapter One's Concept Puzzle

Crossword

Clues Across
1. An argument intended to be valid is called what?
4. A conclusion indicator
5. A collection of sentences some of which are intended to support its conclusion.
7. A conclusion indicator
8. A statement which couldn't be false is logically ______.
9. A conclusion indicator
11. A statement in an argument which provides putative evidence
Clues Down
2. If two sentences mean the same thing we say they are logically ______.
3. A premise indicator
4. An argument which is both valid and has only true premises is _____.
6. A conclusion indicator
10. If an argument is ______, then it is impossible for its conclusion to be false when its premises to be true.
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