invalid formula

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• Invalid proof — In mathematics, there are a variety of spurious proofs of obvious contradictions. Although the proofs are flawed, the errors, usually by design, are comparatively subtle. These fallacies are normally regarded as mere curiosities, but can be used… …   Wikipedia

• Trinitarian formula — [ Latin] The trinitarian formula is the phrase in the name of the Father, and of the Son, and of the Holy Spirit (original Greek εις το ονομα του Πατρος και του Υιου και του Αγίου Πνεύματος, eis to onoma tou Patros kai tou Huiou kai tou Hagiou… …   Wikipedia

• Intuitionistic logic — Intuitionistic logic, or constructive logic, is a symbolic logic system differing from classical logic in its definition of the meaning of a statement being true. In classical logic, all well formed statements are assumed to be either true or… …   Wikipedia

• Baptism — • One of the Seven Sacraments of the Christian Church; frequently called the first sacrament , the door of the sacraments , and the door of the Church Catholic Encyclopedia. Kevin Knight. 2006. Baptism     Baptism …   Catholic encyclopedia

• Mathematical fallacy — In mathematics, certain kinds of mistakes in proof, calculation, or derivation are often exhibited, and sometimes collected, as illustrations of the concept of mathematical fallacy. The specimens of the greatest interest can be seen as… …   Wikipedia

• formal logic — the branch of logic concerned exclusively with the principles of deductive reasoning and with the form rather than the content of propositions. [1855 60] * * * Introduction       the abstract study of propositions, statements, or assertively used …   Universalium

• Excommunication — • Exclusion from the communion, the principal and severest censure, is a medicinal, spiritual penalty that deprives the guilty Christian of all participation in the common blessings of ecclesiastical society Catholic Encyclopedia. Kevin Knight.… …   Catholic encyclopedia

• Apostolicae Curae — is the title of a papal bull, issued in 1896 by Pope Leo XIII, declaring all Anglican ordinations to be absolutely null and utterly void . The Anglican Archbishops of Canterbury and York of the Church of England responded to the papal charges… …   Wikipedia

• Concordat — • In general, a concordat means an agreement, or union of wills, on some matter Catholic Encyclopedia. Kevin Knight. 2006. Concordat     Concordat      …   Catholic encyclopedia

• MARRIAGE — This article is arranged according to the following outline: the concept in the bible in sectarian teaching in rabbinic literature in medieval and modern times marriage ceremony in the bible in the talmud post talmudic period the marriage… …   Encyclopedia of Judaism

• Argument — This article is about the subject as it is studied in logic and philosophy. For other uses, see Argument (disambiguation). In philosophy and logic, an argument is an attempt to persuade someone of something, by giving reasons or evidence for… …   Wikipedia