This is one of those surprisingly difficult concepts.
We avoid the verb to be in operational language because it allows you the pretense of knowledge (promising what you can’t promise) without articulating a causal relationship. The simple example being the difference between ‘the book is on the table’ and ‘I promise i recall seeing a book on the table in the hallway’ or ‘I promise i see a book on the table and if you observe the table in the hall you will see a book on it also.” While this is a simple example, this operationalizing of language into testimonial speech makes almost all sophistry and deceit impossible to construct (really). In fact, most sophomoric philosophically ‘profound’ questions cannot be constructed in operational and testimonial terms.
If you want to know more, spend thirty minutes reading four wiki articles:
THE COPULA (VERB TO BE)
EPRIME (ELIMINATING THE COPULA)
PERFORMATIVE (EXISTENTIAL) TRUTH
(then read the rest of the article)
By the use of performative statements, in ePrime, in Operational Vocabulary, we can falsify almost any claim to knowledge, understanding, consistency, coherence, and truth claims simply by the fact that it is almost impossible to state a falsehood in such gramamtical constraints, just as it is almost impossible to make well formed mathematical or programming statements in the grammatical constraints of mathematics in programming.
DISAMBIGUATION BY SERIALIZATION AND OPERATIONALISM
Most of P-Logic invovles learning how to disambiguate at term by creating an ordered list of terms (serialization) restating them in operational language, and adjusting their definitions so that they are each unique in meaning, yet represent a point on the spectrum of whatever constant relation you are making use of.
THis is the first step in learning propertarian methods.