If the Greek letter is used, it is assumed to be a Fourier transform of another function,

If the original word was capitalised, then the first letter of its abbreviation should retain the capital, for example Lev.

If the relative priorities of these substituents need to be established, R takes priority over S. When this happens, the descriptor of the stereocenter is a lowercase letter ( r or s ) instead of the uppercase letter normally used.

If the user pressed keys 1 + 2 = 3 simultaneously the letter " c " appeared.

If several planets in the same system are discovered at the same time, the closest one to the star gets the next letter, followed by the other planets in order of orbital size.

If a planet orbits one member of a binary star system, then an uppercase letter for the star will be followed by a lowercase letter for the planet.

If Paul was the author of the letter, then it was probably written from Rome during Paul's first imprisonment (; ; ), and probably soon after his arrival there in the year 62, four years after he had parted with the Ephesian elders at Miletus.

If the letter is not considered to be an authentic part of the Pauline corpus it might be dated during the late 1st century, possibly as late as 80 AD.

If the letter to the Colossians is authentically Pauline, then Philemon must live in Colossae.

If there is another functional group at a carbon, it may be named with the Greek letter, e. g., the gamma-amine in gamma-aminobutanoic acid is on the third carbon of the carbon chain attached to the carboxylic acid group.

If Luke was only a sometime companion of Paul who idealized him long after his death, that could explain the differences between Acts and Paul's letter.

If we attempt to apply his rules to Palestrina's own music, we will find ample instances in which they have been followed to the letter, as well as many where they are freely broken.

If he or she is also chief executive, he or she can thus politically control the necessary executive measures without which a proclaimed law can remain dead letter, sometimes for years or even forever.

If the guessing player suggests a letter which occurs in the word, the other player writes it in all its correct positions.

If the suggested letter does not occur in the word, the other player draws one element of the hangman diagram as a tally mark.

If they do not designate a new ruler after three days, then they open a letter left to them by the deceased Sultan, containing a recommendation for a new Sultan.

If absent the crew is open age ( the letter ' O ' is sometimes used ).

Klement returned his bicycle to the manufacturers, Seidel and Naumann, with a letter, in Czech, asking them to carry out repairs, only to receive a reply, in German, stating: " If you would like an answer to your inquiry, you should try writing in a language we can understand ".

If this letter is authentic, then it might have been written soon after Paul's first letter to this community — or possibly years later.

If you were a man '' --

If she, Pamela, were being held responsible for his crimes, then hers must be the final act of expiation.

If someone were to drop a match in here, this place would go up like a haystack ''.

If the other pilots were worried, they did not show it.

If it were the enemy, tactically his position was correct.

If it were not for an old professor who made me read the classics I would have been stymied on what to do, and now I understand why they are classics ; ;

If it were not that I knew who it was I could have mistaken it for my Aunt so well did her clothes fit him.

If an automobile were approaching him, he would know what was required of him, even though he might not be able to act quickly enough.

If there were only darkness, all would be clear.

If there were only the mess, all would be clear ; ;

If these people were denied a voice ( do they have a moral right to a voice??

If we were creating a wholly new society, we could insist that our social, political, economic and philosophic institutions foster rather than hamper man ; ;

If living Jews were unavailable for study, the Bible was at hand.

If his scholarship and formal musicianship were not all they might have been, Mercer demonstrated at an early age that he was gifted with a remarkable ear for rhythm and dialect.

If she were not at home, Mama would see to it that a fresh white rose was there.

If the Stearns were not there, grace would be omitted.

If anything, the conservative Democrats were more opposed to Hearst than the Republicans.

If the hardships of the winter at Valley Forge were trying for healthy men, they were, of course, much more so for those not in good health.

If his circumspection in regard to Philip's sensibilities went so far that he even refused to grant a dispensation for the marriage of Amadee's daughter, Agnes, to the son of the dauphin of Vienne -- a truly peacemaking move according to thirteenth-century ideas, for Savoy and Dauphine were as usual fighting on opposite sides -- for fear that he might seem to be favoring the anti-French coalition, he would certainly never take the far more drastic step of ordering the return of Gascony to Edward, even though, as he admitted to the English ambassadors, he had been advised that the original cession was invalid.

If there were no West Berlin problem, imperialist quarters would have invented an excuse for stepping up the armaments race to try to solve the internal and external problems besetting the United States and its NATO partners.

If the new Soviet series has followed the general pattern of previous Russian tests, the shots were roughly half fission and half fusion, meaning a fission yield of 30 to 40 megatons thus far.

If the Hessian troops sent here willy-nilly by the Hessian Government to fight for England in the 1770's were mercenaries, what shall we call the UN troops sent to the Congo willy-nilly by their governments to fight for the United Nations??

If the UN troops are not mercenaries then the Hessians were not mercenaries either.

If he were to go with White, he would be out there two days, not just listening in the dark at some point between here and Papa-san, but moving ever deeper into enemy land -- behind Papa-san -- itself.