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Theorem mkbag-del-add-content

m < i, i ≤ # A ⊦ (mkbag(A, i) -- A[m]) ++ A[m] = mkbag(A, i)

Type: A user defined theorem
Validity: The proof is valid.
Features: ls, ss,
Comment:
Used by: mkbag-del-add-content-two, perm-shift-one, perm-shift-two, perm-swap,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 1
Used lemmas: bag-del-add, index-in-mkbag,
Used spec theorems:
- Used simplifier rules:
  - nat/le-ls-simp
  - nat/let
  - nat/fle
  - nat-basic/f
  - nat/fle-01
  - nat/lels