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  1. 1 8:32 Logic 101 (#1): Introduction William Spaniel · 227.2K views
  2. 2 6:04 Logic 101 (#2): Overview William Spaniel · 82.8K views
  3. 3 7:17 Logic 101 (#3): Finding Simple Sentences William Spaniel · 74.1K views
  4. 4 4:55 Logic 101 (#4): Representing Simple Sentences William Spaniel · 58.1K views
  5. 5 5:40 Logic 101 (#5): Negation William Spaniel · 73.2K views
  6. 6 5:01 Logic 101 (#6): OR/Disjunction William Spaniel · 51.4K views
  7. 7 5:03 Logic 101 (#7) Compound Sentences William Spaniel · 45.9K views
  8. 8 5:42 Logic 101 (#8): AND/Conjunction William Spaniel · 41.5K views
  9. 9 8:25 Logic 101 (#9): Conditional (If-Then) Statements William Spaniel · 70.3K views
  10. 10 4:56 Logic 101 (#10): Biconditional (IF AND ONLY IF) William Spaniel · 49.4K views
  11. 11 5:56 Logic 101 (#11): Truth Tables William Spaniel · 210.4K views
  12. 12 4:00 Logic 101 (#12): Truth Table Practice William Spaniel · 103.6K views
  13. 13 8:39 Logic 101 (#13): Why Are “Vacuously True” Statements True? William Spaniel · 60.3K views
  14. 14 5:01 Logic 101 (#14): Exclusive OR William Spaniel · 33.7K views
  15. 15 9:37 Logic 101 (#15): Complicated Truth Tables William Spaniel · 37.6K views
  16. 16 4:35 Logic 101 (#16): Double Negation William Spaniel · 38.2K views
  17. 17 5:53 Logic 101 (#17): Material Implication William Spaniel · 42.4K views
  18. 18 5:55 Logic 101 (#18): Contraposition William Spaniel · 30.7K views
  19. 19 6:09 Logic 101 (#19): DeMorgan’s Law, Part 1 William Spaniel · 48.7K views
  20. 20 4:02 Logic 101 (#20): DeMorgan’s Law, Part 2 William Spaniel · 25.6K views
  21. 21 6:29 Logic 101 (#21): Applying Replacement Rules William Spaniel · 39.4K views
  22. 22 3:32 Logic 101 (#22): Associativity William Spaniel · 19.5K views
  23. 23 1:56 Logic 101 (#23): Commutativity William Spaniel · 16.4K views
  24. 24 9:08 Logic 101 (#24): Hard Replacement Rule Problem William Spaniel · 17.8K views
  25. 25 4:10 Logic 101 (#25): Distribution William Spaniel · 18K views
  26. 26 2:10 Logic 101 (#26): Idempotence William Spaniel · 15.2K views
  27. 27 6:00 Logic 101 (#27): Modus Ponens William Spaniel · 80.9K views
  28. 28 5:25 Logic 101 (#28): Modus Tollens William Spaniel · 55.1K views
  29. 29 3:50 Logic 101 (#29): Disjunctive Syllogism William Spaniel · 66.9K views
  30. 30 2:49 Logic 101 (#30): Hypothetical Syllogism William Spaniel · 40K views
  31. 31 3:21 Logic 101 (#31): Constructive Dilemma William Spaniel · 37.6K views
  32. 32 5:05 Logic 101 (#32): Destructive Dilemma William Spaniel · 21.2K views
  33. 33 1:44 Logic 101 (#33): Conjunction Introduction William Spaniel · 17.3K views
  34. 34 1:41 Logic 101 (#34): Simplification William Spaniel · 18.1K views
  35. 35 2:42 Logic 101 (#34.5): Biconditional Introduction and Elimination William Spaniel · 16.6K views
  36. 36 2:25 Logic 101 (#35): Disjunction Introduction William Spaniel · 17.5K views
  37. 37 7:44 Logic 101 (#36): Introduction to Proofs William Spaniel · 80K views
  38. 38 5:01 Logic 101 (#37): Killer Proof Strategy #1 (DeMorgan’s Everything!) William Spaniel · 29.1K views
  39. 39 5:49 Logic 101 (#38): Working Backward (Killer Proof Strategy #2) William Spaniel · 23.2K views
  40. 40 9:02 Logic 101 (#39): Proof By Contradiction/Indirect Proof William Spaniel · 49.4K views
  41. 41 4:49 Logic 101 (#40): Conditional Proofs William Spaniel · 54.3K views
  42. 42 10:43 Logic 101 (#41): Tautologies William Spaniel · 22.4K views
  43. 43 8:21 Logic 101 (#42): Nested Proofs William Spaniel · 9.7K views
  44. 44 6:28 Logic 101 (#43): Proof Practice #1 William Spaniel · 23.7K views
  45. 45 11:42 Logic 101 (#44): Proof Practice #2, Proof By Contradiction Edition William Spaniel · 10.5K views
  46. 46 8:12 Logic 101 (#45): Proof Practice #3, Nested Conditional Proofs Edition William Spaniel · 7.5K views
  47. 47 9:21 Logic 101 (#46): Proof By Cases (Killer Proof Strategy #3) William Spaniel · 10.5K views
  48. 48 7:37 Logic 101 (#47): Biconditional Tautologies William Spaniel · 7.7K views
  49. 49 5:42 Logic 101 (#48): Affirming the Consequent William Spaniel · 12.2K views
  50. 50 4:03 Logic 101 (#49): Denying the Antecedent William Spaniel · 12.4K views