Consider the premise. Does the hypothesis stand independently without contradicting or following it? Premise: These latter vast regions of forests, rivers, and mountains border the Indonesian state of Kalimantan and the oil-rich sultanate of Brunei. Hypothesis: 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.