Formal fallacy, as opposed to informal fallacy, is an error outside the reasoning structure (form), while formal fallacy is a variety of fallacies that violate formal logic rules, such as using various forms of deductive reasoning to violate the logical rules of corresponding reasoning, such as PAS introduced by SAP and SIP introduced by SOP.
The fallacious sentence is as follows:
1. His views are so fallacious that they can't stand scrutiny.
He quoted some inappropriate materials in his paper, which caused fallacies.
His conclusion is contrary to the fact, which is obviously a logical fallacy.
There are some informal fallacies in his reasoning, which need careful analysis.
5. Formal fallacy is a common logical error, which needs us to study and avoid seriously.
There are some basic fallacies in his argument, which need careful analysis.
7. His explanation is totally groundless and absurd.
That theory is untenable and has many fallacies.
9. His conclusion contradicts the previous research, which is obviously a logical fallacy.
10, his argument lacks factual basis and is fallacious.
1 1. The theory of that school has many fallacies and needs further verification.
There are some logical fallacies in his reasoning that need to be corrected.
There are some basic logical fallacies in his argument, which need to be corrected seriously.
There are many logical fallacies in that theory, which needs to be further revised and improved.
15, his explanation lacks factual basis and is completely absurd.
There are many informal fallacies in the theory of that school, which need further study and improvement.
17, his argument is groundless and completely absurd.
18, that theory is untenable and needs to be further revised and improved to avoid more logical fallacies.
19. His explanation is totally groundless and an informal fallacy.
There are many logical fallacies in the theory of that school, which need further study and revision.