Swahili Reciprocal Fragment

@cite{nordlinger-2023}

Swahili marks reciprocity with the verbal suffix "-an-" (sometimes "-ana" in final position). This is a verbal affix strategy (monovalent): it reduces valency by removing the object argument. The reciprocal participants are encoded as a plural subject.

Example: "pend-" (love) → "pend-an-a" (love each other) @cite{nordlinger-2023} ex. 40 (citing Dimitriadis 2004).

The reciprocal affix is distinct from the reflexive prefix "ji-".

def Fragments.Swahili.Reciprocals.reciprocalAffix : Core.Morphology.MorphRule Bool

Swahili reciprocal suffix "-an-" as a morphological rule.

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def Fragments.Swahili.Reciprocals.reflexivePrefix : Core.Morphology.MorphRule Bool

Swahili reflexive prefix "ji-" (for contrast).

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theorem Fragments.Swahili.Reciprocals.recip_distinct_from_reflexive : reciprocalAffix.value ≠ reflexivePrefix.value

Reciprocal and reflexive are formally distinct in Swahili.

theorem Fragments.Swahili.Reciprocals.both_valence_changing : reciprocalAffix.category = Core.Morphology.MorphCategory.valence ∧ reflexivePrefix.category = Core.Morphology.MorphCategory.valence

Both are valence-changing operations.