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Author SHA1 Message Date
Floris van Doorn
a578b1c42e Add computing version of the LES of homotopy groups. 
Start on applications of the LES.
Also finish proofs in sec83 (I've also included them in the latest pull request for the Lean-HoTT library).
 2016-03-02 19:10:12 -05:00
Floris van Doorn
b7f2b9d689 update after renamings in the HoTT library 2016-02-22 20:53:48 -05:00
Floris van Doorn
5c9355c4c1 feat(chain_complex): give the construction of the LES of homotopy groups 
This commit defines "type_chain_complex" which is a typal variant of a chain complex, where the exactness condition is formulated without a propositional truncation in it. The fiber sequence of a pointed map is an instance of this structure.
It also defines "chain_complex" which is the usual notion of a chain complex: a sequence of pointed sets with pointed maps between them, such that the kernel and image of consecutive maps coincide.
The biggest part of this commit is the definition of the long exact sequence of homotopy groups of a pointed map. The definition uses the fiber sequence of a pointed map.
 2016-02-22 20:53:48 -05:00
Clive Newstead
efd5d25039 Merge branch 'master' of https://github.com/cmu-phil/Spectral 2016-02-18 16:18:02 -05:00
Clive Newstead
ae01bcba86 Created sec83.hlean 2016-02-18 16:16:55 -05:00
cnewstead
5342e41863 Delete clive.hlean 2016-02-18 14:04:05 -05:00
Floris van Doorn
52f59f8592 rename long_exact_sequence to chain_complex 2016-02-09 18:27:38 -05:00
Floris van Doorn
d1619c1b53 feat(homotopy/long_exact_sequence): change to chain complexes as basic structure 
Also prove that the equivalences are pointed equivalences
 2016-02-09 18:25:59 -05:00
Floris van Doorn
8f9ef03ad2 feat(homotopy/LES): continue working on the LES of homotopy groups 2016-02-05 00:51:00 -05:00
Floris van Doorn
c926955c8b begin LESs 2016-02-04 19:02:15 -05:00
Clive Newstead
2f150dce1f Playing with groups 2016-02-04 15:31:41 -05:00
Clive Newstead
103e4f72fe Learning how to Git... 2016-02-04 14:02:39 -05:00
Clive Newstead
3a09986692 Created clive.hlean 2016-02-04 14:00:48 -05:00
Floris van Doorn
895050d155 fix(*): fix broken files 2016-02-04 13:38:33 -05:00
Steve Awodey
6889eba5ea added homotopy subdirectory and sample file 
to formalize Chapter 8 of the book
 2016-01-21 14:33:54 -05:00
Steve Awodey
2c97f5cef7 Merge remote-tracking branch 'origin/master' 
# Conflicts:
#	group_theory/basic.hlean
 2016-01-21 14:27:14 -05:00
Steve Awodey
392ee8555a added HoTT Book Chapter 8 to do 2016-01-21 14:25:17 -05:00
Ulrik Buchholtz
5f11c03d60 add rough sketch of dependency graph 2016-01-21 14:18:00 -05:00
Floris van Doorn
01e0d1897b some cleanup 2015-12-10 21:17:29 -05:00
Floris van Doorn
3c9ca4b51c working on tensor group 2015-12-10 20:25:32 -05:00
Floris van Doorn
492b433cc6 show that groups form a precategory (category todo) 2015-12-10 20:24:36 -05:00
Egbert Rijke
304bcc472a homework accomplished 2015-12-10 18:37:30 -05:00
Egbert Rijke
fa25173a38 kernels 2015-12-10 16:36:10 -05:00
Steve Awodey
f1e76aa8db Revert "There have been some changes in the algebra-part of Lean." 
This reverts commit c1d1a5e509.
 2015-12-10 15:41:38 -05:00
Steve Awodey
f4a8a679c6 tiny 
tiny
 2015-12-10 15:41:24 -05:00
Floris van Doorn
c1d1a5e509 There have been some changes in the algebra-part of Lean. 
We now need to import algebra.bundled in group_theory.basic
 2015-12-09 17:12:43 -05:00
Egbert Rijke
633d1f6d46 Merge branch 'master' of https://github.com/cmu-phil/Spectral 2015-12-08 16:17:55 -05:00
Egbert Rijke
99c730b0a5 added Floris his notes 2015-12-08 16:17:38 -05:00
Ulrik Buchholtz
af9f77b71c add Mac Lane's Homology to README.md 2015-12-07 09:20:54 +01:00
Egbert Rijke
0d4166bfbc Update README.md 2015-12-06 18:00:19 -05:00
Egbert Rijke
80694430f9 Update README.md 2015-12-06 17:38:55 -05:00
Egbert Rijke
bc5a240a3a Update README.md 2015-12-06 13:23:49 -05:00
Egbert Rijke
5d14d74145 Update README.md 2015-12-04 17:00:38 -05:00
Egbert Rijke
5bc66d6d23 Update README.md 2015-12-04 16:57:32 -05:00
Egbert Rijke
952f2742e2 Update README.md 2015-12-04 16:54:48 -05:00
Egbert Rijke
bf74676b0f Update README.md 2015-12-04 16:53:35 -05:00
Egbert Rijke
c9758ba4a2 removing K-theory part 2015-12-04 16:05:00 -05:00
Egbert Rijke
5da0c57835 added notes 2015-12-04 16:03:04 -05:00
Mike Shulman
35db866a61 Update README.md with roadmap based on Mike's blog post 2015-12-04 09:25:18 -08:00
Egbert Rijke
9e7b0bfae3 Update README.md 2015-12-04 12:03:18 -05:00
Egbert Rijke
0f762059fe Update README.md 2015-12-04 11:57:56 -05:00
Egbert Rijke
e0cc495abf Update README.md 2015-12-03 19:59:03 -05:00
Egbert Rijke
8d9dd87f3a Update README.md 2015-12-03 19:55:16 -05:00
Floris van Doorn
036d251d25 feat(constructions): add universal properties of free (abelian) groups 2015-11-23 13:43:26 -05:00
Floris van Doorn
96f74d8ea6 feat(group_theory): move files to subfolder, define free (abelian) group 2015-11-23 13:43:22 -05:00
Floris van Doorn
519f5952b0 add .gitignore and .project files 2015-11-20 17:55:33 -05:00
Floris van Doorn
6da27d3121 feat(group_theory): start on group theory, define quotient group 2015-11-20 17:55:23 -05:00
Ulrik Buchholtz
9997bad07e more information README.md 2015-11-18 17:09:18 -05:00
jdramsey
f34a36ce17 Create README.md 2015-11-18 17:00:07 -05:00