Putanga 1: kei reira te whetu e tohu ana i te roopu kore-tūturu. I tua atu, ina he mutunga te `` G '', he isomorphism takirua taurangi. Putanga 2: I reira ka karanga te whetū i te rōpū takirua taurangi, he isomorphism kore noa iho ina he mutunga te `` G''. Pātai: He ōrite te tikanga o te rerenga 1 me te rerenga 2? He Ae, he Kore rānei?
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