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2 changes: 1 addition & 1 deletion Cslib/Computability/Automata/NA/Concat.lean
Original file line number Diff line number Diff line change
Expand Up @@ -177,7 +177,7 @@ theorem finConcat_language_eq [Inhabited Symbol] :
obtain ⟨ss, ⟨_, h_ωtr⟩, _⟩ := concat_run_exists h_xl1 h_run2
#adaptation_note
/-- A grind regression found moving to nightly-2026-03-31 (changes from lean#13166) -/
have h_mtr := LTS.OmegaExecution.extract_mTr h_ωtr (zero_le (xl1.length + xl2.length))
have h_mtr := LTS.OmegaExecution.extract_mTr h_ωtr (zero_le (a := xl1.length + xl2.length))
simp [← append_append_ωSequence, extract_eq_drop_take,
take_append_of_le_length, ← List.length_append] at h_mtr
have : ss (xl1.length + xl2.length) = (ss.drop xl1.length) xl2.length := by grind
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4 changes: 2 additions & 2 deletions lake-manifest.json
Original file line number Diff line number Diff line change
Expand Up @@ -5,10 +5,10 @@
"type": "git",
"subDir": null,
"scope": "leanprover-community",
"rev": "672768680fb7e4eff7dac7ceca12bc3889fd60fd",
"rev": "6cf3ab1c11e19e328c2e535bdd32d66dc7842fb5",
"name": "mathlib",
"manifestFile": "lake-manifest.json",
"inputRev": "672768680fb7e4eff7dac7ceca12bc3889fd60fd",
"inputRev": "6cf3ab1c11e19e328c2e535bdd32d66dc7842fb5",
"inherited": false,
"configFile": "lakefile.lean"},
{"url": "https://github.com/leanprover-community/plausible",
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2 changes: 1 addition & 1 deletion lakefile.toml
Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@ weak.linter.unicodeLinter = false
[[require]]
name = "mathlib"
scope = "leanprover-community"
rev = "672768680fb7e4eff7dac7ceca12bc3889fd60fd"
rev = "6cf3ab1c11e19e328c2e535bdd32d66dc7842fb5"

[[lean_lib]]
name = "Cslib"
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