feat(CombinatoryLogic): add Church-encoded list infrastructure for SKI terms#331
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jessealama wants to merge 1 commit intoleanprover:mainfrom
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feat(CombinatoryLogic): add Church-encoded list infrastructure for SKI terms#331jessealama wants to merge 1 commit intoleanprover:mainfrom
jessealama wants to merge 1 commit intoleanprover:mainfrom
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Adds Church-encoded list operations (nil, cons, head, tail) for SKI combinatory logic, along with conversions to/from Church numerals and helper combinators (PrependZero, SuccHead).
This is a stepping stone toward proving the equivalence of SKI combinatory logic with Mathlib's Turing machines.