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Theorem pos-str-01

⊦ str ≠ "" ∧ char ≠ str.char1 → pos((* char), (* str)) = pos(char, str.rstring) + 1

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by:
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 3
Used lemmas:
Used spec theorems:
- Used simplifier rules:
  - list/string-new/c
  - list-del/string-new/pos-n
  - list/string-new/a
  - nat-basic2/eq-01
  - nat-basic2/a
  - nat-basic2/c
  - list-data/string-new/elim-list