Thread Links Date Links
Thread Prev Thread Next Thread Index Date Prev Date Next Date Index

Re: I erred just now...



Dan,

In v3.01, John proposed the partial order for FTDIA:

   emp \subset con
   saf \subset def \subset con

In motion 25 terms, the equivalent is:

   D0 \subset D1
   D3 \subset D2 \subset D1

Clearly by this ordering the tracking results below are contained and there is no violation.

Nate


----- Original Message ----- From: "Dan Zuras Intervals" <intervals08@xxxxxxxxxxxxxx>
To: <stds-1788@xxxxxxxxxxxxxxxxx>
Cc: "Dan Zuras Intervals" <intervals08@xxxxxxxxxxxxxx>
Sent: Thursday, June 02, 2011 10:08 AM
Subject: I erred just now...


Folks,

I goofed up once again.

The case xx = {[-3,-2],D3}, yy = {[-4,4],D3}, &
f(xx) = xx + sqrt(xx) results in

f(xx) =  {empty,D0}, D(f,xx) = D0, T(f,(xx,D)) = D0,
f(yy) = {[-4,6],D1}, D(f,yy) = D1, T(f,(yy,D)) = D1.

And we have xx \subset yy but decoration(f,xx) <
decoration(f,yy) which violates FTDIA.

Sorry.

Dan