| sk = fs ', is_fskey(sk) ⊦ fs .class = class, class = `java.lang.Object' .class, validstatfield(str, sk, addclass(class, fis, st)) ↔ validstatfield(str, sk, st) |
⊦ fs .class = class, class = `java.lang.Object' .class, validstatfield(str, fs ', addclass(class, fis, st)) ↔ validstatfield(str, fs ', st)
[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_fskey(fs ')])]]