EASY
9th Telangana Board
IMPORTANT
Earn 100

State whether the following statement is a mathematical statement or not? Give reason.

Today is not Sunday.

Important Points to Remember in Chapter -1 - Proofs in Mathematics from Telangana Board Mathematics Class 9 Solutions

1. Mathematical Statements:

(i) The sentences that can be judged on some criteria, no matter by what process for their being true or false are statements.

(ii) Mathematical statements are of a distinct nature from general statements. They can not be proved or justified by getting evidence while they can be disproved by finding a counterexample.

(iii) Making mathematical statements through observing patterns and thinking of the rules that may define such patterns. A hypothesis is a statement of an idea which gives an explanation to a sense of observation.

(iv) A process which can establish the truth of a mathematical statement based purely on logical arguments is called a mathematical proof.

2. Axioms and Theorem:

(i) Axioms are statements which are assumed to be true without proof.

(ii) A conjecture is a statement we believe is true based on our mathematical intuition, but which we are yet to prove.

(iii) A mathematical statement whose truth has been established or proved is called a theorem.

3. Reasoning in Mathematics:

(i) The prime logical method in proving a mathematical statement is deductive reasoning.

(ii) A proof is made up of a successive sequence of mathematical statements.

(iii) Beginning with a given (Hypothesis) of the theorem and arrive at the conclusion by means of a chain of logical steps is mostly followed to prove theorems.

(iv) The proof in which, we start with the assumption contrary to the conclusion and arriving at a contradiction to the hypothesis is another way that we establish the original conclusion is true is another type of deductive reasoning.

(v) The logical tool used in the establishment of the truth of an unambiguous statement to deductive reasoning.

(vi) The reasoning which is based on examining of variety of cases or sets of data discovering pattern and forming conclusion is called Inductive reasoning