Can you think like a computer and work out what this flow diagram does?

Can you set the logic gates so that this machine can decide how many bulbs have been switched on?

What will happen when you switch on these circular circuits?

Weekly Challenge 46: the Jabber-notty

Warm-up problem	Try this next	Ask NRICH	Read all about it	Last week's solution	dfg
For this statement, we need not understand what a 'tove' or 'wabe' is, but we do need to understand the conjunctions (twas, and, in) and how negation affects them. We use De Morgan's Law, which says that for two statements A and B $$ \lnot(A\cap B) = \lnot(A) \cup \lnot(B) $$ So let us denote A as "it was great", and B as "the slithy toves Did gyre and gimble in the wabe". We then see that $\lnot A$ is the statement "it was not great". And $\lnot B$ is the statement "at least one slithy tove did not gyre and gimble in the wabe". Combining these together, we find that: "Either it was not great, or at least one slithy tove did not gyre and gimble in the wabe"
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