On 14-05-30, 13:49, Abinoam Jr. wrote:
> IMHO perhaps #reduce needs at least two values to do his job!
> It needs to do some operation with the previous value and the next one.

Ah, that seems to make sense, thanks. It still seems surprising that it 
doesn't yield the block in only that case. I do wonder if this is 
intended, or an oversight.

Andrew Vit