6 bool equal(struct Expr obj1, struct Expr obj2);
8 bool nil_p(struct Expr obj);
9 bool symbol_p(struct Expr obj);
10 bool string_p(struct Expr obj);
11 bool number_p(struct Expr obj);
12 bool cons_p(struct Expr obj);
13 bool list_p(struct Expr obj);
14 bool list_of_symbols_p(struct Expr obj);
15 bool lambda_p(struct Expr obj);
17 bool is_special(const char *name);
19 long int length_of_list(struct Expr obj);
21 struct Expr assoc(struct Expr key, struct Expr alist);
23 struct Expr list(Gc *gc, const char *format, ...);
25 struct Expr bool_as_expr(Gc *gc, bool condition);