diff options
Diffstat (limited to 'ex/HoTT book/Ch1.thy')
| -rw-r--r-- | ex/HoTT book/Ch1.thy | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/ex/HoTT book/Ch1.thy b/ex/HoTT book/Ch1.thy index 65de875..cc0adf5 100644 --- a/ex/HoTT book/Ch1.thy +++ b/ex/HoTT book/Ch1.thy @@ -13,7 +13,7 @@ chapter \<open>HoTT Book, Chapter 1\<close> section \<open>1.6 Dependent pair types (\<Sigma>-types)\<close> -text "Prove that the only inhabitants of the \<Sigma>-type are those given by the pair constructor." +text "Propositional uniqueness principle:" schematic_goal assumes "(\<Sum>x:A. B(x)): U(i)" and "p: \<Sum>x:A. B(x)" |