69: #line 92 "felix_stdcat.ipk" 70: class cat_sequence(cat_monoid): 71: def compose(self, left, right): return left + right 72: 73: def is_arrow(self, object): 74: return interscript.core.protocols.has_protocol(object,'sequence') 75: 76: def is_object(self, object): 77: return self.is_arrow(object) and len(object)==0 78:
6.12.3.1.7.1. Tuples
6.12.3.1.7.2. Lists
6.12.3.1.7.3. Strings