What is Logic?
- Logic is defined as the science that investigates the principles governing correct or reliable inference. Logic can also be defined as the system or principles of reasoning applicable to any branch of knowledge or study.Logic is the backbone of critical thinking. It is undeniable and we use it whether we would like to or not. When counterfeit Christian groups or any other groups deny core doctrines of the Christian faith, one of the the things that they must do is become extremely illogical in their thinking and reasoning to stay in the error of their ways.
What are the laws of logic?
The laws of logic are as follows:
- Law of Identity - This law simply states that A = A. An orange is an orange. If any statement is true, then it is true. An example would be Holy Spirit is Holy Spirit and not non-Holy Spirit. Another example of this would be the Christ of the Bible is not the "Christ" of the muslims or mormons.
- Law of Non-Contradiction - The law of non contradiction states that no statement (proposition, assertion, etc.) can be both true and not true--false at the same time. A can not be non-A. For example, it can not both be true and not true (in the same time and sense) that a person is and is not a Christian.
- Law of excluded middle - This law states states A or non-A, that is, a statement is either true or false.
- Law of rational inference - This law states if A=B, and B=C, then A=C. In other words, If Jesus is God, God was crucified, then Jesus was crucified. The word trinity is not found in the Bible, but the concept is found in the Bible (see Deut. 6:4; Eph. 1:3; John 1:1; 20:28; Acts 5:3-4; and Mark 12:29-30).There are the laws of logic, there's much to do with them and there isn't much that we can do without them.