LE 3-7-12 Simplest Sentence.

Today is a very small drill.

Logic works with terms, logical operators and propositions (sentences). There are two kinds of terms: term-subject and term-predicate. Simplest proposition consists of one term-subject, one term-predicate and logical operator called “operator of assertion”, which bonds these two terms together in one sentence:

"Object s has attribute P",

"s is such, that P " ,

"s is characterised by that which is P "

This is all same thing, just different words used for the same logical operator of assertion.  “s” is term-object  and “P” is the term-predicate, or attribute.

Examples: The Grand piano has three legs. The African guy is black. The dog is angry. The sun is hot.

Terms-objects are: The grand piano, the African guy, the dog, the sun.

Terms-predicates (or attributes) are: three legs, black, angry, hot.

As you see, operator of assertion can be expressed in different ways. In Russian language it often doesn’t have any expression at all, or just a dash sign (-).  To make the sentence look standard in logic, we have to talk ugly. I have some Russian examples in Russian version of this exercise. However, English gives us a word  “is” , or “has” which is used for operator of assertion, but not only for this.

Please make couple examples on your own. If it sounds too easy, please do it anyway. We are taking day by day baby steps. Also, it will help to perform these drills in both languages. This way you will understand the subject deeper, and learn the language that you know less.