mathmari said:Hey!
Could you suggest a book of logic that contains definitions, like the definition of a language, of an (positive) existential formula, etc?
A logic book is designed to teach readers the fundamentals of logic, including definitions, language, and existential formulas. Its purpose is to help readers develop critical thinking skills and improve their ability to analyze arguments and identify fallacies.
Deductive reasoning is a form of logic in which conclusions are drawn from premises, following a set of rules. Inductive reasoning, on the other hand, involves making generalizations based on specific observations or evidence. In deductive reasoning, the conclusion is guaranteed to be true if the premises are true, while inductive reasoning allows for the possibility of the conclusion being false.
Logical language is essential for effective communication and critical thinking in everyday life. It allows us to clearly express our thoughts and arguments and to evaluate the validity of others' arguments. Understanding logical language helps us make sound decisions and avoid being misled by fallacious reasoning.
Existential formulas are statements that use the symbols "∃" or "∀" to indicate the existence or non-existence of something. They are used in logic to express the concept of quantification, or the idea that a statement applies to some or all members of a group. Existential formulas are important in understanding the logical relationships between different statements and in proving arguments.
Logic is considered an objective field of study because it is based on principles and rules that are universally accepted and can be applied consistently. While there may be differences in how individuals use logic, the underlying principles remain the same. Additionally, the validity of logical arguments can be determined through objective analysis and evaluation.