Top results
slide 1fall 2003costas busch - rpi1 properties of context-free languages slide 2 fall 2003costas busch - rpi2 context-free languages are closed under: union is context free…
slide 1 courtesy costas busch - rpi1 recursively enumerable and recursive languages slide 2 courtesy costas busch - rpi2 definition: a language is recursively enumerable…
slide 1 costas busch - rpi1 positive properties of context-free languages slide 2 costas busch - rpi2 context-free languages are closed under: union is context free is context-free…
slide 1 fall 2005costas busch - rpi1 recursively enumerable and recursive languages slide 2 fall 2005costas busch - rpi2 definition: a language is recursively enumerable…
slide 1 courtesy costas busch - rpi1 npdas accept context-free languages slide 2 courtesy costas busch - rpi2 instantaneous description current state remaining input current…
slide 1 fall 2006costas busch - rpi1 deterministic finite automata and regular languages slide 2 fall 2006costas busch - rpi2 deterministic finite automaton (dfa) input tape…
slide 1 courtesy costas busch - rpi1 positive properties of context-free languages slide 2 courtesy costas busch - rpi2 context-free languages are closed under: union is…
slide 1 costas busch - rpi1 undecidable problems for recursively enumerable languages continued… slide 2 costas busch - rpi2 is empty? is finite? contains two different…
slide 1 costas busch - rpi1 mathematical preliminaries slide 2 costas busch - rpi2 mathematical preliminaries sets functions relations graphs proof techniques slide 3 costas…
slide 1 costas busch - rpi1 finite automata slide 2 costas busch - rpi2 finite automaton input string output string finite automaton slide 3 costas busch - rpi3 finite accepter…
slide 1 costas busch - rpi1 turing machines slide 2 costas busch - rpi2 the language hierarchy regular languages context-free languages ? ? slide 3 costas busch - rpi3 regular…
slide 1 costas busch - rpi1 pushdown automata pdas slide 2 costas busch - rpi2 pushdown automaton -- pda input string stack states slide 3 costas busch - rpi3 initial stack…
slide 1fall 2006costas busch - rpi1 turing machines slide 2 fall 2006costas busch - rpi2 the language hierarchy regular languages context-free languages ? ? slide 3 fall…
slide 1 courtesy costas busch - rpi1 turing machines slide 2 courtesy costas busch - rpi2 the language hierarchy regular languages context-free languages ? ? slide 3 courtesy…
slide 1fall 2006costas busch - rpi1 time complexity slide 2 fall 2006costas busch - rpi2 consider a deterministic turing machine which decides a language slide 3 fall 2006costas…
slide 1 prof. busch - lsu1 non-regular languages (pumping lemma) slide 2 prof. busch - lsu2 regular languages non-regular languages slide 3 prof. busch - lsu3 how can we…
slide 1 prof. busch - lsu1 pumping lemma for context-free languages slide 2 prof. busch - lsu2 take an infinite context-free language example: generates an infinite number…
slide 1 prof. busch - lsu1 more applications of the pumping lemma slide 2 prof. busch - lsu2 the pumping lemma: given a infinite regular language there exists an integer…
costas busch - lsu1 pumping lemma for context-free languages costas busch - lsu2 take an infinite context-free language example: generates an infinite number of different…
slide 1 fall 2006costas busch - rpi1 turing’s thesis slide 2 fall 2006costas busch - rpi2 turing’s thesis (1930): any computation carried out by mechanical means can…