Place options 'All' and 'None' in correct section

[rocky]

And go over docs and summary text for these. Add examples.

[mmatera]

LGTM

[rocky]

@mmatera I am not seeing some of the remaining functions LevelQ and NotListQ listed on the Wolfram site. Do they still work? (Server I use to check this has been unavailable).

[mmatera]

@mmatera I am not seeing some of the remaining functions LevelQ and NotListQ listed on the Wolfram site. Do they still work? (Server I use to check this has been unavailable).

nop, these symbols seem to be removed from WMA

[rocky]

If we know when they were removed I will create a Pymathics module for compatibility with XXX, and move this out of core and into this..

[mmatera]

If we know when they were removed I will create a Pymathics module for compatibility with XXX, and move this out of core and into this..

I never have used that symbol. Legacy versions of the WMA documentation are online. For example,

https://reference.wolfram.com/legacy/v4

has the documentation of version 4. However, I could not find a reference to these symbols.

[mmatera]

On the other hand, we use LevelQ for defining rules in the module mathics.builtin.functional.apply_fns_to_lists

[rocky]

This is weird. Something similar happens for 'NotListQ' - it is used only in signature testing.

And it is used a lot in SymJa rules in signatures as well which leads me to believe this is a part of Mathematica, just one not documented.

We have the option of keeping this but removing it from user-printed documentation.

Your thoughts?

[rocky]

Or we could admit that it exists for use in function signature applicability and ask people not to use. I don't know.

But personally, I don't like the idea of saying nothing and not informing what's up.

[mmatera]

I think we should keep it and document it, but maybe move the symbols to another section.

[mmatera]

A good place for these symbols would be mathics.builtin.testing_expressions.list_oriented. Also probably we should remove the (unexisting) link to Wolfram Reference.