Sit back, relax, concentrate and enjoy. This is something we do not normally think about but is very good to know when we want to get to the truth.
From the internet at: http://www.reference.com
There are 4 fundamental laws of logic.
One law is the Law of Identity. This states that if something is true, then its true.
The second law is the Law of non-contradiction. This states that something can’t be true and false at the same time.
The Law of the excluded middle says something either “is” or “isn’t”.
The last law, the Law of Sufficient Reason states that there should be a sufficient reason to all things that happen.
Below is an apologist’s view of the laws of logic and truth.
The Laws of Logic—–From Apologist Dan Story
The most fundamental of these first principles are the laws of logic, in particular the “law of non-contradiction.” It states that something cannot be two different things at the same time and in the same sense (“A” cannot be both “A” and “non-A” at the same time and in the same relationship). For example, it can’t be both raining and sunny outside at the same time in the same spot. My dog can’t be both sleeping under a shrub and chewing a sprinkler head on the lawn at the same time. If it were possible for contradictions to mutually exist, there would be no difference between true and false, black and white, up or down, and so on. Truth would be impossible to discuss, and facts would forever elude us.
The law of non-contradiction is particularly important in determining religious truth. Simply put, it prevents two contradicting religions from both being true. I will illustrate this in just a moment.
Other foundational laws of logic include the “law of identity” (“A” is “A”—my dog is a dog), the law of excluded middle (either “A” or “non-A”—if I declare I’m petting my dog, I’m either doing it or not), and the law of rational inference (assuming my premises are correct, I can derive logical or true conclusions).
Besides these basic laws of logic, there are also self-evident propositions (statements of truth) that are equally foundational to all thought and knowledge. (These propositions are also first principles.) They include: something can be known, opposites cannot both be true, everything cannot be false, something exists, nothing cannot produce something, everything that comes to be is caused, as well as self-defining tautologies such as all husbands are married and all triangles have three sides.
Without these universal laws of logic, it would be impossible to make heads or tails out of the world, let alone discover truth. To deny them would be to sacrifice a rational world and to prevent any meaningful communication. Indeed, it is because of these universal laws of logic that people from different cultures and with different languages can communicate with one another and come to an agreement on what constitutes truth and reality—religious and otherwise.
For example, it is logically impossible for contradicting religions to all represent truth. The true nature of God is either monotheistic, pantheistic, or something else. God cannot be both monotheistic and pantheistic. Likewise, the resurrection of Jesus. The New Testament clearly teaches that Jesus rose from the grave. The Koran denies it. Both cannot be right.
Let’s tie this all together. For something to be true, it must reflect the facts as they really exist. It is not enough to say that such-and-such is true because it agrees with the facts as I understand them to be. Rather truth must agree with facts as they really are. It must correspond to reality. Truth does not change. As Geisler and Watkins put it:
Truth, like ethical laws, is universal and corresponds to reality. Truth does not spring into existence, neither is it dependent on individuals, on cultures, or on what works. If a statement accurately describes or explains a state of affairs, then its meaning is true for all people, at all places, and in all time periods independently of anyone’s knowledge or verification of the statement. Truth is timeless and absolute, and it corresponds to what is, not to what is not.
Truth, then, is synonymous with reality. If you have truth, you have reality. This implies that if something was true in the past, it is true today whether you or I recognize it or not. Likewise, if something was false in the past, it is false today because truth is not affected by the passage of time or by personal opinion. It exists outside human beliefs, worldviews, cultures, or circumstances.
This is borne out in everyday experience. Occasionally, we discover that something we thought was true in the past turns out to be false. For example, a few decades ago it was believed that tomatoes were poisonous. Now we know tomatoes are not poisonous, and we recognize that this has always been true—even when we didn’t know it. The truth is that healthy food has nothing to do with time or one’s beliefs.
Therefore the Laws of Logic must relate to truth.
Always keep Jesus in your heart and on your mind.
God is testing us every day and has given us the right to make our own choices. Do you know which ones are the right choices in Gods mind?
Fear God, love God, honor God, and trust God with all your heart, mind and soul and you will receive and experience the joy of the promises of God’s blessings in His time.
Prayer: Father in heaven, I praise You for Your Son and the Holy Spirit. I praise You for giving Dan Story the wisdom to write this article about “The Laws of Logic.” It comes from Your wisdom and gives us great hope. Please bless those who have read this article for they too are seeking Your truth and understanding.
May God, Jesus, the Holy Spirit and Christianity be our guiding lights for eternity. Let it be Your will Lord not mine. Please come Lord Jesus.
I pray in Jesus sweet name and to His glory through the power of the Holy Spirit,