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vault backup: 2023-10-23 19:48:40

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Alice 2023-10-23 19:48:40 +01:00
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4
4a1s/MFES/PL - Aula 5.md
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@ -45,13 +45,15 @@ pred Invs {
//no node links to nodes associated with a different hash //no node links to nodes associated with a different hash
all x, y: Node | x.key.hash != y.key.hash implies (x.prox != y and y.prox != x) all x, y: Node | x.key.hash != y.key.hash implies (x.prox != y and y.prox != x)
//MAY BE WORNG STUFF
//the head of a bucket may be empty //the head of a bucket may be empty
all x: Bucket, y : Node | x.head = y or not x.head = y all x: Bucket, y : Node | x.head = y or not x.head = y
//the prox node of another node may be empty //the prox node of another node may be empty
all x: Node, y : Node | x.prox = y or not x.prox = y all x: Node, y : Node | x.prox = y or not x.prox = y
//WORNG STUFF //WORNG STUFF
//buckets may only have one head exclusive to it //buckets may only have one head exclusive to it
all x, y : Bucket| all z : Node | x.head = z implies y.head != z all x, y : Bucket| all z : Node | x.head = z implies y.head != z