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Theorem overwrite-col

⊦ c < #c mx ∧ # a = #r mx ∧ c0 < #c mx → mx[c, a]c[c0]c = (c = c0 ⊃ a;mx[c0]c)

Type: A user defined theorem
Validity: The proof is valid.
Features: ls, s,
Comment:
Used by: perm-updcol-ind, toArc-outside-gen,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 4
Used lemmas: updcol-sel, rowno-updcol,
Used spec theorems:
- array/Extension
Used simplifier rules: