Adding -1 truncation
Adding the principle of unique choice
a transport coherence lemma
Added axiom export files.
Renaming
a fancier transport_path_universe
Merge branch 'master' of github.com:HoTT/HoTT into upstream
Merge branch 'upstream' into flattening
transporting is an equivalence
dependent paths
flattening lemma
fix up the parameters to the flattening lemma
remove spurious imports
Merge pull request #96 from mikeshulman/flattening

The Flattening Lemma
trivial change
Merge branch 'upstream'