Statements:
Some silks are fibres.
No fibre is a polyesters.
Some polyesters are nylons.
Conclusion:
I. Somesilks are not polyesters.
II. Some nylons are fibres.
III. Some polyesters are fibres.
Some silks are fibres. (I) + No fibre is a polyesters. (E) Some silks are not polyesters. (O). Hence conclusion I follows. No fibre is a polyesters. (E) + Some polyesters are nylons. (E) Some nylons are not fibres. (O*). Hence conclusion II does not follow. No fibre is a polyesters. (E) Conversion Some polyesters are not fibres. (O). Hence conclusion III does not follow.
100Â Â Â Â 221Â Â Â Â 77Â Â Â Â 245Â Â Â Â 50Â Â Â 275
12Â Â Â Â Â 13Â Â Â Â Â Â 22Â Â Â Â Â Â 47Â Â Â Â Â 96Â Â Â Â Â ?
...94 282 284 852 856 2562
...30 29 91 446 ? 28217
30    32    67    206    ?     4166
50 62 ? 96 126 138
...1156Â Â Â Â Â Â Â 372Â Â Â Â Â Â Â Â Â 997Â Â Â Â Â Â Â Â Â 513Â Â Â Â Â Â Â Â Â 874Â Â Â Â Â Â Â Â Â 618
1936     a        Â...
2120 1976 2097 1997 ? 2014
...35Â Â Â Â Â Â Â Â Â Â 36Â Â Â Â Â Â Â Â Â Â 40Â Â Â Â Â Â Â Â Â Â 49Â Â Â Â Â Â Â Â Â Â 65Â Â Â Â Â Â Â Â Â Â ?
...504 625 769 938 1134 ?
...