coop/rose-ash
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mk: subo — contiguous sublist relation
Some checks failed
Test, Build, and Deploy / test-build-deploy (push) Failing after 32s
Details

Browse Source 
Composes two appendos: l = front ++ s ++ back, equivalently
  (appendo front-and-s back l) and (appendo front s front-and-s).

Goal order matters: doing the (appendo ground:l) split first makes the
search finitary; the second appendo is then deterministic given
front-and-s and ground s. Reversing the order causes divergence on
failing inputs (the front search becomes unbounded).

7 new tests, 405/405 cumulative.
This commit is contained in:
giles
2026-05-08 11:45:31 +00:00
parent fc14a8063b
commit e202c81a0d
3 changed files with 70 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
plans/minikanren-on-sx.md
View File

@@ -173,6 +173,7 @@ _(none yet)_
_Newest first._
- **2026-05-08** — **subo (contiguous sublist)**: Two appendos chained — l = front ++ s ++ back. Goal order matters: appendo on the ground l first, so the search is finitary; then constrain front. 7 new tests, 405/405 cumulative.
- **2026-05-08** — **prefixo + suffixo**: classic appendo-derived sublist relations. (prefixo p l) ≡ p ⊕ ? = l; (suffixo s l) ≡ ? ⊕ s = l. Both enumerate all prefixes/suffixes when given a fresh first arg. 9 new tests, 398/398 cumulative.
- **2026-05-08** — **palindromeo**: 2-line definition (reverseo + ==). Succeeds when a list reads the same forwards and backwards. 7 new tests, 389/389 cumulative.
- **2026-05-08** — **not-membero**: relational "x is not a member of l".