Does 'These latter vast regions of forests, rivers, and mountains border the Indonesian state of Kalimantan and the oil-rich sultanate of Brunei.' logically negate the premise 'The sultanate of Brunei borders the Indonesian state of Kalimantan.'
These latter vast regions of forests, rivers, and mountains border the Indonesian state of Kalimantan and the oil-rich sultanate of Brunei.###The sultanate of Brunei borders the Indonesian state of Kalimantan.