000 00347 a2200133 4500
020 _a0335142761
082 _a004.0151
_bOPE
090 _c6060
_d8241
245 _aChapter 7 logic and language
_bBlock III (Chapters 7-9)
260 _aWalton
_bOpen University
_c1988
_g1988
300 _a55p.
_c29cm
650 _aMathematical principles
942 _cL
999 _c34856
_d34856