Say that a CFG is minimal if none of its rules can be removed without changing the language generated. Let MINCFG = {hGi| G is a minimal CFG}.a. Show that MINCFG is T-recognizable. b. Show that MINCFG is undecidable.
James Weather and Climate Stanley Gedezelman's (CCNY) seven causes of weather 1. sun's heating varies over Earth and with seasons 2. difference in air temperatures over earth causes the wind (unequal heating of the earth's surface causes the wind) 3. rotation of earth destroys simple wind patterns... twisting the wind, producing spirals... high/low pressure 4. since less moisture can coexist in colder air, precipitation is generally caused by cooling the air 5. pressure in the atmosphere ALWAYS decreases with height (the rate at which it decreases varies) 6. the process of decreasing air pressure... temps drop the process of increasing air pressure... temps rise (think of canned air) >> colder (pumping a ball) >> hotter 7. clouds/precipitation are caused by rising air (lows) clear ski
