## How to build a machine that enumerates language L=0^2n, n is natural number?

I don’t know how to build an enumerator G such that L(G)={0^2n, n is natural number}. I have constructed turing machine for given language:

(A is accept, R is reject)

I don’t know how can I use this machine to make language enumerator (to print strings ,00, 0000, 000000,…). I can’t find any examples or algorithms for finding enumerator for given language.

## Do natural weapon’s work with the Booming Blade spell?

As far as I can tell there are three different ways that “natural weapons” are described:

• Aarakocra:

Talons: You are proficient with your unarmed strikes, which deal 1d4 slashing damage on a hit.

• Tabaxi:

Cat’s Claws: In addition, your claws are natural weapons, which you can use to make unarmed strikes.

• Centaur:

Hooves: Your hooves are natural melee weapons, which you can use to make unarmed strikes.

There also already exist the following two questions which explain that these wording differences do matter:

• “Do natural melee weapons (from racial traits) trigger Improved Divine Smite?”
• “What are natural weapons?”

How do these different classifications work with the booming blade spell, which states:

As part of the action used to cast this spell, you must make a melee attack with a weapon against one creature within the spell’s range […]

Which races, if any, could use their unarmed strikes with booming blade?

## Is the power of a natural number logspace-computable?

Given $$n\in\mathbb{N}_+$$, is the simple power function $$\mathrm{\lambda}\,x\in\mathbb{N}_+.\,x^n$$ logspace computable by a logspace transducer (which has a read-only input tape, a working read-write tape of size $$\mathcal{O}(\lambda x.\,\log x)$$, and a write-only output tape), assuming that the input and the output are in binary? (It is not even clear to me how to do it for $$n=2$$ in logspace.) Any ideas or references?

## Opposing skill rolls & Natural 20

I’m a new DM, and I’m running through the Starter Kit adventure ( “Lost Mine of Phandelver “). At one point there was an opposing skill check for one of the PC’s trying to sneak — Stealth vs Perception. The player rolled a 20, and there was a bit of discussion about whether that was an automatic success — similar to Critical Hits.

So, I’m wondering:

1. Do all opposing skill checks automatically succeed on a natural 20 ( unless there’s a tie )?
2. If not all opposing skill checks automatically succeed on a natural 20, do any of them? If so, which ones?
3. Besides saves & attack rolls, what treats a natural 20 as an automatic success?

## Where does the ‘Natural Language’ rule come from?

Frequently it is said (sometimes by me) that 5e’s rules expect the reader to use ‘natural language’ or the ‘normal’ meaning of words when interpreting any words in the rules texts the game doesn’t specifically define. Where does this idea come from? If it is a rule, where is it found?

## For a creature’s natural attacks, is it possible to change the order of attacks?

As a Master of Many Forms, I recently started to use the Harpoon Spider as a form.

Full attack is :

Bite +11 melee and 2 fangs +2 ranged

The ex attack harpooning works like this

Harpooning (Ex): A dread harpoon spider can fire its harpoonlike fangs up to 20 feet (no range increment). A successful hit deals 1d6+1 points of damage as the harpoon hooks the flesh of the target and immediately exudes a thick, sticky glue. The spider can reel in a harpoon as a free action; treat this as a trip attack (+19 bonus) against any creature attached to the fang. Failure indicates that the harpoon rips free (and deals another 1d6+1 points of damage to the victim). This ability is otherwise like the ordinary harpoon spider’s harpooning ability.

Now, the question is, would it be possible to use the harpoon first, reel the target in and then bite, all in a full attack? Or do I have to wait until the next turn to bite?

## Lycanthrope’s natural weapons and two-weapon fighting?

I plan on making a druid character who later accepts the curse of lycanthropy into his body in order to control it, something like a shapeshifter from Baldur’s Gate. Am I able to use the multi-attack action and the bonus action I have to make a third attack (claw attack) as defined under the two weapon fighting style rules? I have yet to find anything saying whether or not natural weapons are light, as it seems common sense that a hand (claw) is considered light, as it is your hand.

## Do natural weapons count for two weapon fighting?

Do natural weapons such as those granted by being a Tabaxi or an Aarakocra count for the purposes of two weapon fighting? Would they have the light property to allow it and if not what about if you take the dual wielder feat that removes the restriction on them being light?

From a logical perspective I would think claws or talons would be light enough to count and with them being “natural weapons” this means they are definitely weapons so it would make sense for them to be considered light and one handed.