| Ideally, individualized formulae would be prescribed by fully trained practitioners. |
| We propose a generalization of Sahlqvist formulae to polyadic modal languages by representing modal polyadic languages in a combinatorial style. |
| The mathematics of the formalists deals only with symbols and formulae that have no independent meaning. |
| He found the standard addition formulas for hyperbolic functions, their derivatives and their relation to the exponential function. |
| Cleaner, greener jet fuels made from formulas that contain part soybean oil could clean up the air and give added profits to soybean growers. |
| In aerodynamics he introduced formulas for aerodynamic force and for the distribution of pressure. |
