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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…
costas busch - lsu3 we need a tool to prove that the previous problems for context-free languages are undecidable: the post correspondence problem
slide 1 costas busch - lsu1 non-deterministic finite automata slide 2 costas busch - lsu2 alphabet = nondeterministic finite automaton (nfa) slide 3 costas busch - lsu3 no…
slide 1 prof. busch - lsu1 undecidable problems (unsolvable problems) slide 2 prof. busch - lsu2 recall that: a language is decidable, if there is a turing machine (decider)…
prof busch - lsu * yacc yet another compiler compiler prof busch - lsu prof busch - lsu * yacc is a parser generator input: a grammar output: a parser for the grammar reminder:…
counting csc-2259 discrete structures konstantin busch - lsu * konstantin busch - lsu basic counting principles konstantin busch - lsu * product rule: suppose a procedure…
prof. busch - lsu * nfas accept the regular languages prof. busch - lsu prof. busch - lsu * equivalence of machines definition: machine is equivalent to machine if prof.…
slide 1 prof. busch - lsu1 properties of context-free languages slide 2 prof. busch - lsu2 context-free languages are closed under: union is context free is context-free…
slide 1 prof. busch - lsu1 simplifications of context-free grammars slide 2 prof. busch - lsu2 a substitution rule substitute equivalent grammar slide 3 prof. busch - lsu3…
relations csc-2259 discrete structures konstantin busch - lsu * konstantin busch - lsu relations and their properties konstantin busch - lsu * a binary relation from set…
costas busch - lsu * properties of context-free languages costas busch - lsu * costas busch - lsu * context-free languages are closed under: union is context free is context…
slide 1 discrete probability csc-2259 discrete structures konstantin busch - lsu1 slide 2 sample space: introduction to discrete probability 2 unbiased die all possible outcomes…
slide 1 prof. busch - lsu1 context-free languages slide 2 prof. busch - lsu2 regular languages context-free languages slide 3 prof. busch - lsu3 context-free languages pushdown…
advanced counting techniques csc-2259 discrete structures konstantin busch - lsu * konstantin busch - lsu recurrence relations konstantin busch - lsu * sequence recurrence…
slide 1 prof. busch - lsu1 turing machines slide 2 prof. busch - lsu2 the language hierarchy regular languages context-free languages ? ? slide 3 prof. busch - lsu3 regular…
prof. busch - lsu * mathematical preliminaries prof. busch - lsu prof. busch - lsu * mathematical preliminaries sets functions relations graphs proof techniques prof. busch…
slide 1 prof. busch - lsu1 pushdown automata pdas slide 2 prof. busch - lsu2 pushdown automaton -- pda input string stack states slide 3 prof. busch - lsu3 initial stack…