Semi-positive

But it's really tough to like or even keep a semi-positive attitude toward people who seem to try to make your life miserable -- people like one of my drill instructors in Recon school that hated me from the first second he saw me for some unknown reason.

In any event, she nodded at the appropriate moments, initiating the mumbling semi-positive responses which pass for acquiescence in a seventeen year-old and so I felt confident that at least 10% of the rules would be adhered to about 5% of the time.

A few days later Jack told us the consensus of opinion was that the small tumor had looked highly suspicious, as in cancerous, but not the pancreatic kind. That was semi-positive, although I had a feeling it was his way of not scaring the crap out of us.

Figure 5 illustrates the action of a semi-positive mold.

Usually, T-invariants are defined to be vectors over T, that is, mappings from T to the integer numbers Z. For the BA, we are only interested in semi-positive T-invariants, that is, mappings from T to the natural numbers N.