2023 (source code)
= 2023
{scope}
{title2=B3.4}
{title2=A12171W}
Original solutions to all three questions of the <University of Oxford> Part B <algebraic number theory> paper, sat on 30 May 2023. Source: https://www.whatdotheyknow.com/request/request_for_mathematics_examinat/response/3129786/attach/3/FOI%20202507%20740%20Data.pdf#page=241[Oxford's released examination PDF, bundle pages 241–242; paper pages 1–2]. The cover prints the formal code A12171W without a final digit. In 2(b)(iii), the printed assertion about a <principal ideal domain> is false as written; the solution identifies the error and proves the intended <principal ideal ring> assertion and its consequence.
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