If one is interested solely in how information from diagrams is situated logically in Euclid's proofs according to the Eu approach, diagrams need not formalized directly as symbols.
This process is clearly a prescribed formal behavior, highly formalized, and no use of technology application, and even the faith of mystical power, a card with some printed symbol which makes us on the relationship between the airline and airport.
Modern logic showed that most of deductive reasoning can be formalized, i.e. most semantic relations among symbols can be entirely captured by the symbols' formal/syntactic properties and the relations among them.
A natural language statement of the second kind (like the example statement with the time five o'clock 15 March 2006) is then formalized using a nominal, not an ordinary propositional symbol (which would be used to formalize the example statement with rainy weather).
The abbreviations and the interspersed explanations in the sketch above may obscure that arithmetic has been formalized in a language that consists of five symbols (when juxtaposition is not counted): S, K, = plus two delimiters, ( and ) .
His treaty was never formalized.
She formalized her marriage as an "arrangement".
"It formalized a hobby," he said.
He formalized the theory of matrices.
The 10th guru, Govind Singh, formalized this collective identity in 1699 when he established a ritual of Sikh initiation and codified a set of communal symbols that included, for men, leaving their hair uncut, wearing a turban and assuming the surname Singh ("lion"), and for women, using the surname Kaur ("princess").
