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        <Explanation>THE INCOME FROM ENDOWMENT FUNDS FROM DONORS IS USED FOR SPECIFIC PURPOSES, SUCH AS PRIZES, LECTURES, SCHOLARSHIPS, GRANTS AND OUTREACH PROJECTS. THE MAJORITY OF THE ENDOWMENT FUNDS ARE BOARD-DESIGNATED FUNDS. THESE FUNDS INCLUDE: (1) THE JOURNAL ARCHIVE FUND, WHICH PROVIDES FUNDING FOR THE SOCIETY TO CHANGE ITS ARCHIVAL FORMATTING OF ITS PUBLICATION WHEN REQUIRED IN THE FUTURE; (2) THE YOUNG SCHOLARS FUND, WHICH PROVIDES SUPPORT TO SUMMER MATH CAMPS FOR TALENTED YOUNG STUDENTS; (3) THE OPERATING SUPPORT FUND, WHICH SUPPORTS THE OPERATING ACTIVITIES OF THE SOCIETY; (4) THE ECONOMIC STABILIZATION FUND, WHICH IS A TRUE RESERVE FUND FOR THE SOCIETY TO USE SHOULD ECONOMIC EMERGENCIES ARISE; (5) THE BACKFILE DIGITIZATION FUND, WHICH PROVIDES FUNDS FOR THE DIGITIZATION OF THE SOCIETY'S BOOKS; (6) THE ENDOWMENT INCOME STABILIZATION FUND, WHICH SUPPORTS ENDOWED PROGRAMS WHEN ENDOWMENT INCOME FALLS SHORT OF AMOUNTS NEEDED.</Explanation>
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        <Identifier>DESCRIPTION OF UNCERTAIN TAX POSITIONS UNDER FIN 48:</Identifier>
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        <TypeOfGrant>BIRKHOFF PRIZE - APPLIED MATHEMATICS</TypeOfGrant>
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        <TypeOfGrant>COLE PRIZE IN ALGEBRA</TypeOfGrant>
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        <TypeOfGrant>A.L. WHITEMAN MEMORIAL PRIZE</TypeOfGrant>
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        <TypeOfGrant>MORGAN PRIZE</TypeOfGrant>
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        <TypeOfGrant>MATH ART AWARD</TypeOfGrant>
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        <TypeOfGrant>2012-2013 CONGRESSIONAL FELLOWSHIP</TypeOfGrant>
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        <Identifier>PROCEDURE FOR MONITORING GRANTS IN THE U.S.:</Identifier>
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        <Identifier>SCHEDULE I, PART I, LINE 2:</Identifier>
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        <ReturnReference>PART I, LINE 1A</ReturnReference>
        <Explanation>AN EXCEPTION WAS MADE FOR ONE OFFICER TO FLY FIRST CLASS ONCE DURING THE YEAR DURING A LONG, CROSS-COUNTRY FLIGHT. THE AMS REIMBURSED FEES CHARGED TO THE OFFICER TO UPGRADE TO FIRST CLASS AND THE OFFICER USED HIS AIRLINE FREQUENT FLYER POINTS TO OFFSET MOST OF THE COST. THE FINAL TOTAL FARE WAS CHEAPER THAN MANY COACH AIRLINE TICKETS FOR THE SAME FLIGHT.</Explanation>
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      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION A, LINE 6</ReturnReference>
        <Explanation>THE SOCIETY HAS MORE THAN 30,000 MEMBERS, INDIVIDUAL AND INSTITUTIONAL, WITH NO CRITERIA FOR MEMBERSHIP.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION A, LINE 7A</ReturnReference>
        <Explanation>THE INDIVIDUAL MEMBERSHIP ELECTS ALL BOARD MEMBERS, EXCEPT THE TREASURER AND ASSOCIATE TREASURER. THE TREASURER AND ASSOCIATE TREASURER SERVE WITH APPROVAL OF THE COUNCIL. A SECOND GOVERNING BODY, THE COUNCIL, HAS SOME MEMBERS THAT ARE ELECTED BY THE MEMBERSHIP. CHANGES TO THE BYLAWS MUST BE APPROVED BY THE MEMBERSHIP.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION A, LINE 7B</ReturnReference>
        <Explanation>THE INDIVIDUAL MEMBERSHIP ELECTS ALL BOARD MEMBERS, EXCEPT THE TREASURER AND ASSOCIATE TREASURER. THE TREASURER AND ASSOCIATE TREASURER SERVE WITH APPROVAL OF THE COUNCIL. A SECOND GOVERNING BODY, THE COUNCIL, HAS SOME MEMBERS THAT ARE ELECTED BY THE MEMBERSHIP. CHANGES TO THE BYLAWS MUST BE APPROVED BY THE MEMBERSHIP.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 11</ReturnReference>
        <Explanation>THE 990 IS PREPARED BY THE FISCAL DEPARTMENT AND THE SOCIETY'S TAX ADVISORS, CBIZ TOFIAS. WHEN THE FINAL DRAFT IS PREPARED, IT IS REVIEWED BY THE CHIEF FINANCIAL OFFICER AND THE EXECUTIVE DIRECTOR. AFTER THIS REVIEW, THE BOARD OF TRUSTEES IS ASKED TO REVIEW THE 990 ELECTRONICALLY BY ACCESSING A SECURE INTERNET SITE. THEY ARE GIVEN APPROXIMATELY THREE TO FIVE BUSINESS DAYS TO REVIEW THE DRAFT. AFTER RESPONDING TO ANY FEEDBACK FROM THE TRUSTEES, THE FILING IS MADE.</Explanation>
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      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 12C</ReturnReference>
        <Explanation>AMS OFFICERS, TRUSTEES, AND KEY EMPLOYEES, WHO ARE DEFINED AS INTERESTED PERSONS, ARE REQUIRED TO DISCLOSE ANNUALLY FINANCIAL INTERESTS THAT COULD GIVE RISE TO CONFLICTS BY SIGNING OFF ON THE CONFLICT OF INTEREST POLICY. THE AMS ADOPTED THIS POLICY IN NOVEMBER 2011 AND TRUSTEES SIGNED OFF ON THIS POLICY IN NOVEMBER. EACH NOVEMBER TRUSTEES AND KEY EMPLOYEES WILL BE ASKED TO AGAIN SIGN OFF ON THE POLICY AND DISCLOSE ANY POSSIBLE OR ACTUAL CONFLICTS. THE AMS DEFINES AN "INTERESTED PERSON" ACCORDING TO THE IRS DEFINITION, AND THEY ARE ANY DIRECTOR, PRINCIPAL OFFICER, OR MEMBER OF A COMMITTEE WITH BOARD-DELEGATED POWERS, WHO HAS A DIRECT OR INDIRECT FINANCIAL INTEREST. AN INTERESTED PERSON MUST DISCLOSE A FINANCIAL INTEREST, AS DEFINED BY THE IRS, THAT IS A POTENTIAL CONFLICT TO THE BOARD OF TRUSTEES OR COMMITTEE WHO WILL DECIDE IF A CONFLICT EXISTS. IF THE BOARD OF TRUSTEES OR COMMITTEE WITH BOARD-DELEGATED POWERS, EXCLUDING THE INTERESTED PERSON, DECIDES THAT A CONFLICT EXISTS, ALTERNATIVE TRANSACTIONS OR ARRANGEMENTS MIGHT BE MADE AFTER INVESTIGATING IN ORDER TO AVOID THE CONFLICT. ALTERNATIVELY, DISINTERESTED PERSONS ON THE BOARD OF TRUSTEES OR COMMITTEE MAY DETERMINE THAT A TRANSACTION IS FAIR OR REASONABLE AND IN THE BEST INTERESTS OF THE ORGANIZATION. THE INTERESTED PERSON WHO HAS A CONFLICT MAY NOT VOTE ON MATTERS FOR WHICH THERE IS A CONFLICT OF INTEREST AND THEY MUST BE EXCLUDED FROM DISCUSSIONS OF MATTERS FOR WHICH THERE IS A CONFLICT OF INTEREST.</Explanation>
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      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 15</ReturnReference>
        <Explanation>THE BOARD OF TRUSTEES REVIEWS AND APPROVES WITH THE EXECUTIVE DIRECTOR THE PROCESS BY WHICH THE EXECUTIVE DIRECTOR ESTABLISHES THE SALARY AND BENEFITS OF THE CHIEF FINANCIAL OFFICER AND KEY EMPLOYEES FOR THE UPCOMING YEAR. INCLUDED IN THIS REVIEW IS COMPARISON DATA FROM COMPENSATION SURVEYS. WITH RESPECT TO THE EXECUTIVE DIRECTOR, THE BOARD IS GIVEN SALARY AND BENEFIT AMOUNTS APPROVED FOR THE CURRENT YEAR, AND PROFORMA AMOUNTS FOR THE UPCOMING YEAR. THE BOARD IS ALSO GIVEN COMPARISON DATA FROM COMPENSATION SURVEYS TO ASSIST WITH COMPENSATION DECISIONS FOR THE EXECUTIVE DIRECTOR. THE BOARD TAKES INTO CONSIDERATION THE INFORMATION PROVIDED BY STAFF AS WELL AS COMPENSATION SURVEYS AND PERFORMANCE IN SETTING HIS/HER COMPENSATION FOR THE FOLLOWING YEAR. ALL COMPENSATION SURVEYS USED FOR SETTING THE EXECUTIVE DIRECTOR AND KEY EMPLOYEES SALARIES ARE FROM INDEPENDENT SOURCES, AND THEY ARE GATHERED BY A HUMAN RESOURCES PROFESSIONAL. THE BOARD DOCUMENTS THEIR PROCESS FOR SETTING THE SALARIES EACH YEAR.</Explanation>
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      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION C, LINE 19</ReturnReference>
        <Explanation>SHORTLY AFTER FILING, THE SOCIETY'S FORM 990 AND ALL SCHEDULES (EXCLUDING SCHEDULE B) IS COPIED AND MADE AVAILABLE TO THE SOCIETY'S THREE LOCATIONS. IF ANYONE REQUESTS TO SEE THE FORM 990 AND SCHEDULES, COPIES ARE PROVIDED BY STAFF MAIL OR EMAIL. THE SOCIETY'S GOVERNING DOCUMENTS ARE ON THE SOCIETY'S WEBSITE. THE ANNUAL REPORT OF THE TREASURER, INCLUDING THE FINANCIAL STATEMENT, IS PUBLISHED EACH YEAR IN THE SOCIETY'S PUBLICATION, NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, AS WELL AS THE ANNUAL REPORT. THESE PUBLICATIONS ARE AVAILABLE ON THE WEBSITE. THE 990 IS ALSO AVAILABLE ON THE GUIDESTAR WEBSITE.</Explanation>
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        <Identifier>CHANGES IN NET ASSETS OR FUND BALANCES:</Identifier>
        <ReturnReference>FORM 990, PART XI, LINE 9:</ReturnReference>
        <Explanation>POSTRETIREMENT BENEFIT - RELATED CHANGES -458,200. CAPITALIZATION OF LABOR FOR IN-HOUSE SOFTWARE DEVELOPMENT 667,012. ROUNDING 1.</Explanation>
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