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Theorem append-rec
⊦ (char + str) + str0 = char + (str + str0)
Type: An axiom
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by:
app
,
assoc
,
chartostring-01
,
empty
,
empty-01
,
first-01
,
rec
,
rest-01
,
Used by units in proved state:
Proof exists?: No