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Dijkstra's Predicate Transfomer Semantics

7 2021-10-23 13:12 *

☡
non wlp(S, R)
| = ¬ 1
|| if S = M¬
|| R := true
|| fi
| = ¬ 2
|| if S = Mo ∨ (1)
|| fi
| = 3
|| if S = M¬ ∧ S = ¬R
|| fi
| = 4
|| wp(S, non R)
|| wlp(S, (non) R)
|| (R non ,S)pw
(R ,S)plw non

18