 Joshua Potter
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a371cbb6f4
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Embed latex proof for finite domain and range size.
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2023-11-12 18:29:40 -07:00 |
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Joshua Potter
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cdba12f161
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Drop Theorem 6A references.
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2023-11-12 11:44:57 -07:00 |
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Joshua Potter
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b596478a36
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More LaTeX proof embedding. Finish up "Set Difference Size".
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2023-11-12 11:21:00 -07:00 |
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Joshua Potter
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f215a3180a
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Enderton (set). Chapter 6 formatting.
More consistent header levels throughout.
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2023-11-11 15:15:03 -07:00 |
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Joshua Potter
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b97b8fbbca
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Use swap theorems in pigeonhole principle proof.
Establish precedent for embedding LaTeX proof into code.
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2023-11-11 09:48:12 -07:00 |
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Joshua Potter
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857d0ea83e
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Enderton (Set). Additions to exercise set 6. (#8)
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2023-11-10 10:02:25 -07:00 |
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Joshua Potter
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4f371ac9b8
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Update for use with latest Mathlib version.
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2023-11-08 00:26:03 -07:00 |
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Joshua Potter
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edef7e9b58
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Enderton (set). Partially work on finite set exercises.
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2023-09-27 19:32:50 -06:00 |
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Joshua Potter
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2a85d526d7
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Enderton (set). Finish equinumerosity theorems.
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2023-09-19 08:39:34 -06:00 |
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Joshua Potter
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7959c474a0
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Enderton (set). Fixup the pigeonhole principle.
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2023-09-16 17:54:41 -06:00 |
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Joshua Potter
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f1a10c6877
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Enderton (set). Wrap original pigeonhole expression into aux.
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2023-09-14 10:00:39 -06:00 |
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Joshua Potter
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91fc8436da
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Prove the pigeonhole principle. (#7)
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2023-09-14 09:00:28 -06:00 |
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Joshua Potter
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66ca483671
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Enderton (set). Isomorphism from ℕ to peano systems.
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2023-09-09 05:15:52 -06:00 |
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Joshua Potter
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7e1eb8fdfb
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Require simp to make progress.
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2023-09-08 18:50:44 -06:00 |
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Joshua Potter
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3bf6f13055
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Enderton (set). Add Lean scaffolding for finite set theorems/bijections.
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2023-08-26 18:43:44 -06:00 |
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Joshua Potter
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a00a5f5523
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Enderton (set). Work through backlog of theorems and exercises.
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2023-08-26 18:41:33 -06:00 |
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Joshua Potter
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306acd2975
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Enderton (set). Begin adding Chapter 6 lean theorems.
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2023-08-23 18:23:28 -06:00 |
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Joshua Potter
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9fe4f2ee78
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Enderton (logic). Most of exercises 6.1.
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2023-08-20 07:02:37 -06:00 |
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Joshua Potter
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a4f72d0a84
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Enderton. Set/logic exercises and truth table macros.
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2023-08-17 21:32:05 -06:00 |
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Joshua Potter
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f990a7a30a
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Enderton. Reorder theorems in Lean modules and add set/logic prompts.
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2023-08-17 18:04:20 -06:00 |
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Joshua Potter
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2c1547aee9
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Enderton (set). Equinumerosity theorems.
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2023-08-17 12:56:39 -06:00 |
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Joshua Potter
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8f833f9353
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Enderton (set). Begin chapter 6 exercises.
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2023-08-16 12:46:16 -06:00 |
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Joshua Potter
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cbf4528bbc
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Enderton (logic). Begin writing out Lean proofs for Exercises 1.
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2023-08-14 20:37:09 -06:00 |
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Joshua Potter
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a4cecbffd8
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Enderton (set). Chapter 4 exercises.
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2023-08-12 13:53:51 -06:00 |
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Joshua Potter
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21a3e78106
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Enderton (set). Continue refining ordering theorems/exercises.
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2023-08-11 18:58:36 -06:00 |
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Joshua Potter
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656530fed9
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Enderton (set). Theorem 4N, Corollary 4P.
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2023-08-11 08:17:30 -06:00 |
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Joshua Potter
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83699dd58e
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Enderton. Continue actually verifying set theorems.
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2023-08-09 15:44:40 -06:00 |
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Joshua Potter
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1eff704803
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Start fixing up unverified.
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2023-08-09 12:59:23 -06:00 |
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Joshua Potter
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e08e68bbc3
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Enderton. Fix lemma 3B header.
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2023-08-09 10:10:11 -06:00 |
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Joshua Potter
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d89200fd9d
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Simplify lean link formatting.
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2023-08-09 10:07:18 -06:00 |
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Joshua Potter
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e8aa984b98
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Add icon to distinguish Lean definitions from custom ones.
Update to pending any proofs that were using already defined Lean
proofs.
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2023-08-08 20:50:31 -06:00 |
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Joshua Potter
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77684120d9
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Enderton. Prove ordering theorems and fix injective successor proof.
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2023-08-04 18:26:15 -06:00 |
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Joshua Potter
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5dfb2f12cf
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Enderton. Finish ordering on natural numbers exercises.
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2023-08-04 09:44:58 -06:00 |
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Joshua Potter
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9b8ddd2b0d
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Enderton. Begin progressing through natural numbers.
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2023-07-19 19:25:44 -06:00 |
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Joshua Potter
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4679b66abe
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Enderton. Finish ordering relation exercises/theorems.
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2023-07-18 16:34:06 -06:00 |
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Joshua Potter
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668c005c91
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Enderton. Ordering relations exercises.
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2023-07-14 15:09:33 -06:00 |
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Joshua Potter
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c07be8a4ce
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Enderton. Finish most equivalence class exercises.
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2023-07-13 13:06:48 -06:00 |
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Joshua Potter
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5991554fcb
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Enderton. Exercise 3.38.
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2023-07-11 16:48:46 -06:00 |
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Joshua Potter
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2199503f70
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Enderton. Fixup equivalence class def'ns and additional exercises.
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2023-07-11 13:15:45 -06:00 |
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Joshua Potter
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98ecc12995
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Enderton. Additional equivalence relation exercises.
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2023-07-10 14:47:27 -06:00 |
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Joshua Potter
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c574b481af
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Enderton. Exercise 3.29.
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2023-07-07 20:30:53 -06:00 |
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Joshua Potter
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04fe6c66db
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Enderton. Heterogeneous relations and additional exercises.
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2023-07-07 10:56:47 -06:00 |
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Joshua Potter
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1c6fec389f
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Enderton. Exercises 3.19-3.23.
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2023-07-06 15:31:09 -06:00 |
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Joshua Potter
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874bbe203c
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Enderton. Exercise 3.19.
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2023-07-06 07:31:13 -06:00 |
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Joshua Potter
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0e55484adc
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Enderton. Exercises 3.16 - 3.18.
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2023-07-05 17:02:43 -06:00 |
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Joshua Potter
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d3f242cf07
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Enderton. Formally verify exercises 3.12 through 3.15.
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2023-07-05 12:45:51 -06:00 |
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Joshua Potter
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993e9fe981
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Enderton. Exercise 3.31, Theorem 3K, and corollary.
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2023-07-04 16:35:21 -06:00 |
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Joshua Potter
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86abd77523
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Enderton. Lean references of definitions and more exercises.
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2023-07-03 15:48:28 -06:00 |
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Joshua Potter
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140195a8ee
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Enderton. Add equivalence relation problem prompts.
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2023-07-02 12:26:09 -06:00 |
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Joshua Potter
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8294d9583c
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Enderton. Prove out most of the set function exercises.
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2023-07-01 14:40:11 -06:00 |