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Overview of Identical, Different, Contradictory, and Related Phenomena | |
 Part 1 Lower Quality (4.1 MB) | Higher Quality (8.2 MB) | 0:36 hours mp3 audio |
| Part 2 Lower Quality (3.8 MB) | Higher Quality (7.7 MB) | 0:34 hours mp3 audio |
 Session One: Opposites and Relations, One and Different | unedited transcript |
| Session Two: Questions and Answers | unedited transcript |