We present an empirical study of mathematical proofs by diagonalization, the aim is their mechanization based on proof planning techniques. We show that these proofs can be constructed according to a strategy that (i) nds an indexing relation, (ii) constructs a diagonal element, and (iii) makes the implicit contradiction of the diagonal element explicit. Moreover we suggest how diagonal element...

It is widely recognized that the diagnostic clinical laboratory has been revolutionized during recent years by extraordinary progress and instrumentation in automation. The microbiology and immunology laboratories have not developed until quite recently a sophisticated instrumentation and automation methodology. However, such advances are dependent on both modification and expansion of conventi...

Abstract The paper presents a structure diagram of slot trencher when planting garden, consisting frame on which working sections, bevel gear reducer and support wheel stands are fixed. On the section there is shaft with body - disk cutter. It made in form disc teeth, one cutting edge each tooth straight other parabolic. parabolic elements fixed knives two parts. A along periphery; guide entire...