SYMBOLIC LOGIC

SYMBOLS

  Keyboard

  Meanings

TRUTH TABLES

  How to Build

  Truth Tables (Direct)

  Truth Tables (Indirect)

PROOFS

  Strategy Hints

  Implication Rules (7.1 and 7.2)

  Replacement Rules (7.3 and 7.4)

  Assumption Rules (7.5 and 7.6)

  Quantification Rules (8.2, 8.3 and 8.4)

  Identity Rules (8.7)

QUANTIFICATION INVALIDITY

  Translation into a Finite Universe