... one sufficiency-neccesity confusion per PT :joy:
... confusion errors:
PT17.S2.Q11(★); PT22.S4.Q21(★★★); ... (★★★★); PTJ07.S3.Q25 (★★★★★); PT64.S1.Q24 (★★★★); PT67.S2.Q09 (★★); PT68. ... now but something like PT30.S2.Q25 (★★★★) may be a good ...