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sav08:hoare_logic [2009/02/25 14:34] vkuncak |
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| We then similarly extend the notion of $sp(P,r)$ and $wp(r,Q)$ to work on formulas and commands. We use the same notation and infer from the context whether we are dealing with sets and relations or formulas and commands. | We then similarly extend the notion of $sp(P,r)$ and $wp(r,Q)$ to work on formulas and commands. We use the same notation and infer from the context whether we are dealing with sets and relations or formulas and commands. | ||
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| { \{P\} c_1 ; c_2 \{ R \} } | { \{P\} c_1 ; c_2 \{ R \} } | ||
| \] | \] | ||
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| + | We can prove this from | ||
| + | * definition of Hoare triple | ||
| + | * meaning of ';' as $\circ$ | ||
| ===== Further reading ===== | ===== Further reading ===== | ||
| * {{sav08:backwright98refinementcalculus.pdf|Refinement Calculus Book by Back, Wright}} | * {{sav08:backwright98refinementcalculus.pdf|Refinement Calculus Book by Back, Wright}} | ||