LOGIC SYMBOLS

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Across
  1. 2. &
  2. 7. •.•
  3. 8. mark, !
  4. 11. line, |
  5. 12. if and only if (iff)
  6. 13. caret, v
  7. 14. .•.
  8. 15. •
Down
  1. 1. equivalent or xor
  2. 3. quote, X'
  3. 4. not-negation
  4. 5. ^
  5. 6. +
  6. 9. <–>
  7. 10. ~