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Sefer Yetzirah (Hebrew: סֵפֶר יְצִירָה Sēp̄er Yəṣīrā, Book of Formation, or Book of Creation) is a book on Jewish mysticism.Early commentaries, such as the Kuzari, [1] treated it as a treatise on mathematical and linguistic theory as opposed to Kabbalah.
Ussher further narrowed down the date by using the Jewish calendar to establish the "first day" of creation as falling on a Sunday near the autumnal equinox. [9] The day of the week was a backward calculation from the six days of creation with God resting on the seventh, which in the Jewish calendar is Saturday—hence, Creation began on a Sunday.
When necessary, the position of the hydroxyl group is indicated by a number between the alkane name and the -ol: propan-1-ol for CH 3 CH 2 CH 2 OH, propan-2-ol for CH 3 CH(OH)CH 3. If a higher priority group is present (such as an aldehyde , ketone , or carboxylic acid ), then the prefix hydroxy- is used, [ 19 ] e.g., as in 1-hydroxy-2 ...
In the book, Augustine took the view that everything in the universe was created simultaneously by God, and not in seven days like a plain account of Genesis would require. He argues that the six-day structure of creation presented in the book of Genesis represents a logical framework, rather than the passage of time in a physical way.
Skeletal structural formula of Vitamin B 12.Many organic molecules are too complicated to be specified by a molecular formula.. The structural formula of a chemical compound is a graphic representation of the molecular structure (determined by structural chemistry methods), showing how the atoms are possibly arranged in the real three-dimensional space.
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The Ismaili thinker Nasir Khusraw (d. after 1070) believed that the six-day creation period concerned not the creation of the physical cosmos but instead the spiritual one. Each of six days, from the first day of the week (Sunday) until Friday were symbolized by an individual figure, from Adam (Sunday), Noah (Tuesday), Abraham (Wednesday ...
In chemistry, a hydroxy or hydroxyl group is a functional group with the chemical formula −OH and composed of one oxygen atom covalently bonded to one hydrogen atom. In organic chemistry , alcohols and carboxylic acids contain one or more hydroxy groups.