On Sat, 16 May 2009, Tracy Harms wrote:
> invocation, and verbs must be defined prior to execution.
IIRC undefined name are treated as verb. Suppose b is not yet defined,
a=: 3 + b
a
3 + b
b=: 1
a 10
|domain error: b
| a 10
b=: *:
a 10
103
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