Commit Graph

18 Commits (931e617161c90c4a9a8bd6a5b292867d34b4c1a8)

Author SHA1 Message Date
Joshua Potter 931e617161 Enderton. Formally verify theorem 3G. 2023-06-26 07:08:25 -06:00
Joshua Potter a6e6251627 Enderton. Continue through theorem 3 set. 2023-06-25 07:27:35 -06:00
Joshua Potter 27372eb160 Enderton. Add additional definitions and prove Theorem 3E. 2023-06-23 15:47:55 -06:00
Joshua Potter 8b5736397c Enderton. Break out relations/ordered pairs. Exercise 6.7. 2023-06-20 15:02:09 -06:00
Joshua Potter f5d1fc546a Enderton. Move Kuratowski's definition of an ordered pair into chapter; not
likely to be used outside this book.
2023-06-10 16:02:22 -06:00
Joshua Potter 6d3a2d8ad0 Fix build errors in `Chapter_2.lean`. 2023-06-10 12:09:24 -06:00
Joshua Potter 64d8324657 Enderton. Finish exercises 5 in LaTeX. 2023-06-10 05:51:42 -06:00
Joshua Potter ad3e31764b Enderton. Exercise 5.(1|2a|2b). 2023-06-09 21:03:06 -06:00
Joshua Potter 49bd4871fe Enderton. Theorem 3A. 2023-06-06 20:16:06 -06:00
Joshua Potter 2dff3f5794 Enderton. Chapter 2 exercises, 11-25. 2023-06-04 17:34:42 -06:00
Joshua Potter 4624d58924 Enderton. Continue proofs/exercises of "Axioms and Operations." 2023-05-23 15:38:33 -06:00
Joshua Potter 8279131d74 Enderton, basic axioms/unions exercises. 2023-05-21 18:32:59 -06:00
Joshua Potter c0f8895686 Derive a more constructive `StepFunction` definition. 2023-05-15 13:37:01 -06:00
Joshua Potter 96dd9b5669 Revise geometry with different types of rectangles and lines. 2023-05-15 06:40:35 -06:00
Joshua Potter 3fc293579d Add concept of glossary. 2023-05-12 19:31:44 -06:00
Joshua Potter f5dfb9ff6b Generalize concept of partitions and step functions. 2023-05-12 13:17:34 -06:00
Joshua Potter 56751a6f3b Use a consistent naming convention. 2023-05-12 11:08:52 -06:00
Joshua Potter 60724c0b52 Generalize set functions and move partitions in anticipation
of Apostol 1.11 exercise 8.
2023-05-12 07:05:31 -06:00