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sav08:correctness_of_a_g_reasoning [2008/04/10 12:46]
vkuncak
sav08:correctness_of_a_g_reasoning [2008/04/10 13:47]
vkuncak
Line 65: Line 65:
 For relations $r$, $s$ that propagate errors (as in [[Assert and error conditions]]):​ For relations $r$, $s$ that propagate errors (as in [[Assert and error conditions]]):​
 \[ \[
-     (assume(P(x)); r \subseteq s)\ \ \leftrightarrow\ \ r \subseteq assert(P(x)); s+     ​assume(P) ​\mathop{;r \subseteq s\ \ \leftrightarrow\ \ r \subseteq assert(P) ​\mathop{;s
 \] \]
 \[ \[
-     (r; assert(Q(x)) \subseteq s)\ \ \leftrightarrow\ \ r \subseteq s;assume(Q(x))+     ​r ​\mathop{;assert(Q) \subseteq s\ \ \leftrightarrow\ \ r \subseteq s \mathop{;assume(Q)
 \] \]