LOGIC SYMBOLS

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Across
  1. 1.
  2. 4.
  3. 6.
  4. 11.
  5. 12. not negation
  6. 14. ^
  7. 15. if and only if (iff)
Down
  1. 2. exclusive or - xor
  2. 3. &
  3. 5. x'
  4. 7.
  5. 8. negation
  6. 9. ¬
  7. 10.
  8. 13.