1
consts
2
Ball :: "'a set => ('a => bool) => bool"
3
syntax
4
"@Ball" :: "pttrn => 'a set => bool => bool" ("(3! _ : _./ _)" 10)
5
translations
6
"! x : A. P" == "Ball A (% x. P)"
7
defs
8
Ball_def "Ball A P == ! x. x : A --> P x"
9