> (define a 2)
> 'a
a
> ''a
'a
> '(+ a 3)
(+ a 3)
> (evali '(+ a 3))
5
> (do-define 'b 5)
> b
5
> b
> (do-define 'b 5)
> b
10
> b
[image] [image] b: undefined;
 cannot reference an identifier before its definition
> (do-define 'b 5)
[image] [image] v: undefined;
 cannot reference an identifier before its definition
> (do-define 'b 5)
> b
10