diff options
Diffstat (limited to 'Proj.thy')
| -rw-r--r-- | Proj.thy | 8 |
1 files changed, 4 insertions, 4 deletions
@@ -24,9 +24,9 @@ unfolding fst_def by (derive lems: assms) lemma fst_comp: assumes "A: U(i)" and "B: A \<longrightarrow> U(i)" and "a: A" and "b: B(a)" shows "fst(<a,b>) \<equiv> a" unfolding fst_def -proof +proof compute show "a: A" and "b: B(a)" by fact+ -qed (simple lems: assms)+ +qed (routine lems: assms)+ lemma snd_type: assumes "\<Sum>x:A. B(x): U(i)" and "p: \<Sum>x:A. B(x)" shows "snd(p): B(fst p)" @@ -46,11 +46,11 @@ qed fact lemma snd_comp: assumes "A: U(i)" and "B: A \<longrightarrow> U(i)" and "a: A" and "b: B(a)" shows "snd(<a,b>) \<equiv> b" unfolding snd_def -proof +proof compute show "\<And>x y. y: B(x) \<Longrightarrow> y: B(x)" . show "a: A" by fact show "b: B(a)" by fact -qed (simple lems: assms) +qed (routine lems: assms) text "Rule attribute declarations:" |