Name of the default :predicate - has vs is?

[jaguart]

Minor question on the name of the default :predicate

• https://github.com/Ovid/Cor/blob/master/rfc/attributes.md#6234-predicateoptional_identifier indicates has
• https://github.com/Ovid/Cor/blob/master/rfc/grammar.md#field-grammar indicates is

[Ovid]

Thank you for that! It should be has_. It's now fixed in the grammar.