From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <> X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HTML_MESSAGE,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 Received: from AUS01-SY4-obe.outbound.protection.outlook.com (mail-sy4aus01hn2222.outbound.protection.outlook.com [52.100.199.222]) by inbox.vuxu.org (Postfix) with ESMTP id 57A5D24695 for ; Sun, 3 Mar 2024 01:55:27 +0100 (CET) ARC-Seal: i=5; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=pass; b=XrouhkKORVjUj0ZAyeurDBhSmiPV8yjVQ2QYbaIhTh47Jxgo5ukcuJY8GTC0WwXHNIjoMiJmDT7JQC78NaYbnAztNcwDLjJkfjpLZEZgEn1iewH08ja1Pw9slC9HAo47RgZ0HwDqSghrEAYWiUiigzEqMiAxjj72tSkj5tpdfNxh7bQ0pUlA20Oe/i4PdTfWc+jzOiFLWVl2zz2C40sUU8A8pWKaU/s4yl3VPL1LXCRDaiSRySI1mDFvIfmUBaTxDAE/PxGB1Bo+TXN7BZBSXeiajw8nXOhI9aWae3bx8PSMyfXncFToTCiWPc6vjV6yK/5VtYtXBFlZRnukFFzrbw== ARC-Message-Signature: i=5; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=cgV729K03mMRx6KTDil+XbYb53ugoTRfqJ/I2WwwouQ=; b=gOrD7qtJFChmrhEs7BAiA71s/k0+6laRuyi4A8TyDY7klPvwAQX2TwHdgkQ+yMmk4TN20YXL6dAOacOcvNNAIgHIkwFA4xtPb1vrzRSSK5b73mVQ39b3Edyi7u0EA8pLmZOO4Eial73LTzF+VPEHBik0uEqJx1FydTAehpYCB8Wx7U5dutREn4Wa1Xg1+2B/NGN6lFhRlZAOGYBerDiThzcjivIC26y8GsPf7znW5p5SkYCZS07cVLEL+DRB7CztIAEg6eI/vhARMqoqNVVsp+N6Fi7psobfpfHtHzeum7SWeCuX1Ss7reqWd7jgw9q7xtmnk/Vphwy6QlySpbv2Ug== ARC-Authentication-Results: i=5; mx.microsoft.com 1; spf=pass (sender ip is 40.107.116.90) smtp.rcpttodomain=mq.edu.au smtp.mailfrom=mcgill.ca; dmarc=pass (p=none sp=none pct=100) action=none header.from=mcgill.ca; dkim=fail (body hash did not verify) header.d=mcgill.ca; arc=pass (0 oda=0 ltdi=0 93) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=groups.office.net; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=cgV729K03mMRx6KTDil+XbYb53ugoTRfqJ/I2WwwouQ=; b=jMpgNg22YUY7qVciIYg6im49T6NmyaOQdM45UKa8U4mdYzBjM8H4zhCckh2jKgXZblA42eo4VEzIuVp909ToSOqLUmhH9CzVXxPjmCzPHYKxCiFEE5esk4UFIpI8LxGzrDsFNyw7hakdp+Y9rRI5t+A2P1sn8H6A/n8EdSYLAkM50/JkME7xbqyd1AFy/A2qrBK3x/q4gk97jAIEW7yAqcl3fU3CbqI1L7rEJdtozh30RvsmFt9dvKK3xpAhM4uuxkFoo9SwJn1PUQ0i2vJ8z1nmPXtw+ZBJeZGyWb+lOyC9rRUFa6/CRwDm8eDxEdJzU8ccZ01HHB5jxVLrqbLbvg== Received: from SmtpServer.Submit by SYBPR01MB6399 with Microsoft SMTP Server id 15.20.7339.37; Sun, 3 Mar 2024 00:55:23 +0000 ARC-Seal: i=4; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=pass; b=W+rXpdgMwKE2tzrXlXKlAzpzphXKLg+4V491UohKhh4ASJZ/GH8VhQfABj85nfhiyMlmYHTSa1TRQyJuhXlDW7Lbj9sNs005Jt+V1p1X1Zc9Bwekhru4rXcNXngLzxWU6lHneMSWQVAIFiu1Y/H8GVq5bTunz1o/lHF8AehQYaf0dO1kxPHhD8jcUCUyqVrlzWxyuuDZrL7AkzTKaAb3U3Jyp00sF7yiLvxgyQYrSRonqYm4awfZ5UAwYjZs8059jUh8ItjFptcK1OiF4yAj8Eg3vNTJQEOD1w82jq+cIs9mJZP6a+vAcYS2to0kvGEGbom2ovKl3zIUDAXEMnO76Q== ARC-Message-Signature: i=4; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=XGLO9HSk90A+mw922S27jAQYfsPBqfAfVTH5jDrpINw=; b=POvMYWxFuaKoxkjd9cS8PWmgGLwUKJzgzQgQTu7Lb7GqEFm8++J3/F4vQ1fBYp6w65T1Szsr2UZhqNmf1UC5qlaFHg5pqjnHhWD6TrmFK32wxOws0CI/a1AUEu073Wl5K05Oi8WjdEzh/84hOrqxOnS8yhbryZe/BCI2qHf4gvE9DHZ9iMrBznZu7v1Hkc9EQtpuhGmPE8pYRz1gaOJsoMFEzhgN3bDZ3XKpXgt3mRz6G1hjevdlvMFRk833jtS5WARsKCyGibY74guViVgTE6BOxU1a4TxKo2LGxy0WFX8uDHyFLvjSqtueuzidHIjW7HQYx+53WGnAbEaXXEltfQ== ARC-Authentication-Results: i=4; mx.microsoft.com 1; spf=pass (sender ip is 40.107.116.90) smtp.rcpttodomain=mq.edu.au smtp.mailfrom=mcgill.ca; dmarc=pass (p=none sp=none pct=100) action=none header.from=mcgill.ca; dkim=fail (body hash did not verify) header.d=mcgill.ca; arc=pass (0 oda=0 ltdi=0 93) Received: from MEWPR01MB8951.ausprd01.prod.outlook.com (2603:10c6:220:1fb::15) by SYBPR01MB6399.ausprd01.prod.outlook.com (2603:10c6:10:103::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7339.37; Sun, 3 Mar 2024 00:55:18 +0000 Received: from SYBPR01MB8556.ausprd01.prod.outlook.com (2603:10c6:10:1ab::6) by MEWPR01MB8951.ausprd01.prod.outlook.com (2603:10c6:220:1fb::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7339.37; Sun, 3 Mar 2024 00:55:13 +0000 Received: from SYBPR01MB8556.ausprd01.prod.outlook.com ([fe80::3607:8017:7b20:1a00]) by SYBPR01MB8556.ausprd01.prod.outlook.com ([fe80::3607:8017:7b20:1a00%3]) with mapi id 15.20.7316.023; Sun, 3 Mar 2024 00:55:12 +0000 ARC-Seal: i=3; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=pass; b=R38g13CcUBAwxltgvEkvjpOLETrDjUA2TGTRi0MLAZaMOChm40q0hJoCVkSFxAmDWzWuxxPlXaQUWAZzR17mnWHl7n1zdhL4iF/UuXT6/aeqKfo8PeJKVjTv5BNbr4zLnFfahGonMV/3veWUA66CfkEcoxuIuvCFKfNQXiPebnzK/gHPn7TmSgDR0Z/0pYBwZEPG3Acab5komJMAtKQB5fdjdQ+6k3LkpbqURbo7j6STA4o6zoROaDbrK5d45vsRvQxd1LveBFuxxsmU3PjkkOKxI84Mc8+U998A7d1DU/g2Z8ziA1u5ybMGWqCFvNAjrmd5TRAnufkZUbrk8RLhNA== ARC-Message-Signature: i=3; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=XGLO9HSk90A+mw922S27jAQYfsPBqfAfVTH5jDrpINw=; b=l4lbpA8Pllzl5fBCrOCDHfAC6YSSmndXKZGv/VThK1WphZN5nx6oXkpSCBx1RsDkPaO2bARZg24PZxs6s8kr8KkgQtOkeQaWtdnqIW5+1S+B7QvpK/Kf05SJJ+BMB9fj5A0ggqiQO892XjfXXwpsdUX1nfyaeQmS3o2ydMoGw+GlpJjF8vFbZYXoH0C5mJlZz3Y/fjIBpkHiVY2eA43NOYe97zs6MP9csNq4pGxMusxHWj0A3GmiTDYpWYccjWfGOdo8BSHBkDmHbX7Dr7mUTmjY6Ps2SxAdHz6AIT7ZKSaVnRjrE4wlBh8R8n/arawaiWQB8yvdJqBxNDu2LpFN6w== ARC-Authentication-Results: i=3; mx.microsoft.com 1; spf=pass (sender ip is 40.107.116.90) smtp.rcpttodomain=mq.edu.au smtp.mailfrom=mcgill.ca; dmarc=pass (p=none sp=none pct=100) action=none header.from=mcgill.ca; dkim=fail (body hash did not verify) header.d=mcgill.ca; arc=pass (0 oda=0 ltdi=0 93) Received: from SY6PR01CA0090.ausprd01.prod.outlook.com (2603:10c6:10:110::23) by MEWPR01MB8606.ausprd01.prod.outlook.com (2603:10c6:220:1fb::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7339.37; Sat, 2 Mar 2024 23:56:53 +0000 Received: from SY2PEPF00004FF2.ausprd01.prod.outlook.com (2603:10c6:10:110:cafe::1) by SY6PR01CA0090.outlook.office365.com (2603:10c6:10:110::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7339.37 via Frontend Transport; Sat, 2 Mar 2024 23:56:53 +0000 Authentication-Results: spf=pass (sender IP is 40.107.116.90) smtp.mailfrom=mcgill.ca; dkim=fail (body hash did not verify) header.d=mcgill.ca;dmarc=pass action=none header.from=mcgill.ca; Received-SPF: Pass (protection.outlook.com: domain of mcgill.ca designates 40.107.116.90 as permitted sender) receiver=protection.outlook.com; client-ip=40.107.116.90; helo=CAN01-YQB-obe.outbound.protection.outlook.com; pr=C Received: from au-smtp-inbound-delivery-1.mimecast.com (103.96.22.101) by SY2PEPF00004FF2.mail.protection.outlook.com (10.167.241.4) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7362.11 via Frontend Transport; Sat, 2 Mar 2024 23:56:51 +0000 ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=dkim.mimecast.com; s=201903; t=1709423811; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: dkim-signature; bh=XGLO9HSk90A+mw922S27jAQYfsPBqfAfVTH5jDrpINw=; b=XeoI73wbOzbXlYXzBSMWSn4Ck+U+pcgIjtsYlZHyfk8u0gzHyOvgf1bdgGYKG3hVIrf2LD kOxhZYDZ+RVm8NIVU0NnD/WoXrLI+d7BwhkOtIIKagTFhx6Dfw1m5KRnptzKTDT9ECK1xy hFTyknAbMhVJahA6b9AicGFCtxaVxfbwTY8usw2SZWKUViLgYV1DzHJboyOkqjDOnQ5joe NnhO0womhRUf3wad0Sz+7xpjMaCsb9TRi1InaZz5ga0xOZ4JXlBXwz69NC/7AUTndm0P8r af4nBvcTW4B0vdzfoGwVODPyvGMa3DLQdmvtYGGAi/AbTd0xUeYBe1wMUtfYyQ== ARC-Seal: i=2; s=201903; d=dkim.mimecast.com; t=1709423811; a=rsa-sha256; cv=pass; b=Kak3d5+zNWUKtTgtnOArnebzRCXWAtpujLxoK+2ThuMNNW1m3xvy+5kQqC8XO+FXiYfJAj Zf8KEv96+Ywm1GunVGJck38DTqhXOtkZvYMnb/9WaHR762gfm/n7U5rgHg92XjCmB+ehf6 fI4EJh9gIA3zi56YC1mQ2WQ3dnxyIU54tVOWmvXNrV6URdn0uE5mLvme8Cz6OpG2Q09hEP Co+NOgvxQ0dPGsFPBe3JjWQ3aaPJ7mnB6PKeGVGUIdQ7kWDgPZHKYKA+EYgYpqXfzkY025 fpRD6YBchLC7gMTOUqEOpnZ70xAu9TjluS8nbaEiwlZFFjyS8Jb2clGVlPuc9Q== ARC-Authentication-Results: i=2; relay.mimecast.com; dkim=pass header.d=mcgill.ca header.s=selector1 header.b=To60Nwn3; arc=pass ("microsoft.com:s=arcselector9901:i=1"); dmarc=pass (policy=none) header.from=mcgill.ca; spf=pass (relay.mimecast.com: domain of barr.michael@mcgill.ca designates 40.107.116.90 as permitted sender) smtp.mailfrom=barr.michael@mcgill.ca Received: from CAN01-YQB-obe.outbound.protection.outlook.com (mail-yqbcan01on2090.outbound.protection.outlook.com [40.107.116.90]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id au-mta-96-Rk4LF1R6Nj2eVdNgbY0sVQ-1; Sun, 03 Mar 2024 10:56:48 +1100 X-MC-Unique: Rk4LF1R6Nj2eVdNgbY0sVQ-1 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=Z5P5thLtXMZ/oy26XxWL+9OST2qp7D0J3ce37Hl1L5WtucDN/4tMaH6VRj+ELGDpyFoQUHw5lrdrL4rqSvXWvMmxw/t1BWDTUZuOTBW9Co8gb1siB3mvUKHgVH2d3fu9DOSvLi6BKAminJPjM6+YzWSl7oLoZAPQx0VuB3Afye7rmvRcq5Kz2De/zcCL5wKTOeQE6Ce6GBk8rAw9mLcEiNGVDGcbFesRB1cF9Nxo2w3cVe6AfxTG3YQ7XbiJhfowK3XiJL4L6nZpWAK7u7CJ77AmT+6V0d2fUl6MvC34/okH+91GwPMyq3wPgB7fBXz9qnVggY139bQ8ZPL8cc2wsw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=FZVoshJX3hjB5NnRQG5aBYYi7P7Yz8H5WazL5zWW4oo=; b=AzQkjgwrzI/MZqc85iKEnPgfFKYAeS7ieZxFDmMXS/KEW+Ip4n7tkP+iNeEGhkoQzb/eNsoYM670kppIexHAV4Or3XCDXTWNmoypQ722vgFwkI0DgCaMtlVRm6mT9Wle2O5WAHHosNFF2rGIAX3i3h1xNSOaNmjexTEADnIPxRfzP5sioRb3AFIjociOHtoj6qLTGEIvJyMFw1sqbaZ3tKDkeH47u+He6hzqRewbrOGJ+scPL22iNe37TrTV5FiK8+PQzjeSHshJs1cuVyHtB05KSHbqDLK4GVLLm+MJ0uUY7+iwNH3c1llEX8WDmZSIQoPSpWliyJmmGt3mSbF45A== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=mcgill.ca; dmarc=pass action=none header.from=mcgill.ca; dkim=pass header.d=mcgill.ca; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mcgill.ca; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=FZVoshJX3hjB5NnRQG5aBYYi7P7Yz8H5WazL5zWW4oo=; b=To60Nwn3RxnWpWhKasRaOOSeV292uzQIwPBVAiHk9fNrU8rrFzjpMWKGIIAny8c4dTWRygsUgzcwnZ8utpYIkJMcsoelVXrQtPxmmBUT0eOxcczaMAasDskLfi4gnZ3tXPzJY0iWDEwj4iRZjNXdzbs8A70DIKNvMDJLkOYUma4= Received: from YQXPR01MB3927.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:c00:52::28) by YT2PR01MB5920.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b01:5a::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7362.21; Sat, 2 Mar 2024 23:56:44 +0000 Received: from YQXPR01MB3927.CANPRD01.PROD.OUTLOOK.COM ([fe80::5da8:aa61:f964:a886]) by YQXPR01MB3927.CANPRD01.PROD.OUTLOOK.COM ([fe80::5da8:aa61:f964:a886%3]) with mapi id 15.20.7362.019; Sat, 2 Mar 2024 23:56:44 +0000 From: "Michael Barr, Prof." To: "categories@mq.edu.au" Subject: Historical notes in Freyd's Abelian Categories Thread-Topic: Historical notes in Freyd's Abelian Categories Thread-Index: AQHabPycIzyH7xTRXEm7fohE0ESNPw== Date: Sat, 2 Mar 2024 23:56:44 +0000 Message-ID: Accept-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: msip_labels: x-ms-traffictypediagnostic: YQXPR01MB3927:EE_|YT2PR01MB5920:EE_|SY2PEPF00004FF2:EE_|MEWPR01MB8606:EE_|MEWPR01MB8951:EE_|SYBPR01MB6399:EE_ X-MS-Office365-Filtering-Correlation-Id: 963157e1-e1ed-47db-968c-08dc3b146e8f X-MS-Exchange-SenderADCheck: 0 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0 X-Microsoft-Antispam-Message-Info-Original: 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 X-Forefront-Antispam-Report-Untrusted: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:YQXPR01MB3927.CANPRD01.PROD.OUTLOOK.COM;PTR:;CAT:NONE;SFS:(13230031)(376005)(38070700009);DIR:OUT;SFP:1102 MIME-Version: 1.0 X-MS-Exchange-Transport-CrossTenantHeadersStamped: YT2PR01MB5920 Authentication-Results-Original: relay.mimecast.com; dkim=pass header.d=mcgill.ca header.s=selector1 header.b=To60Nwn3; arc=pass ("microsoft.com:s=arcselector9901:i=1"); dmarc=pass (policy=none) header.from=mcgill.ca; spf=pass (relay.mimecast.com: domain of barr.michael@mcgill.ca designates 40.107.116.90 as permitted sender) smtp.mailfrom=barr.michael@mcgill.ca X-Mimecast-Spam-Score: 0 X-Mimecast-Impersonation-Protect: Policy=MQ - Tag Header Only on Default Settings;Similar Internal Domain=false;Similar Monitored External Domain=false;Custom External Domain=false;Mimecast External Domain=false;Newly Observed Domain=false;Internal User Name=false;Custom Display Name List=false;Reply-to Address Mismatch=false;Targeted Threat Dictionary=false;Mimecast Threat Dictionary=false;Custom Threat Dictionary=false Content-Language: en-US Content-Type: multipart/alternative; boundary="_000_YQXPR01MB3927CD062883A767DC34C6B79C5D2YQXPR01MB3927CANP_" X-EOPAttributedMessage: 0 X-EOPTenantAttributedMessage: 82c514c1-a717-4087-be06-d40d2070ad52:0 X-MS-Exchange-SkipListedInternetSender: ip=[40.107.116.90];domain=CAN01-YQB-obe.outbound.protection.outlook.com X-MS-Exchange-ExternalOriginalInternetSender: ip=[40.107.116.90];domain=CAN01-YQB-obe.outbound.protection.outlook.com X-MS-Exchange-Transport-CrossTenantHeadersStripped: SY2PEPF00004FF2.ausprd01.prod.outlook.com X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id-Prvs: d452947e-871d-4daf-7f4b-08dc3b1469ef X-Moderation-Data: 3/3/2024 12:55:10 AM X-LD-Processed: 82c514c1-a717-4087-be06-d40d2070ad52,ExtAddr,ExtAddr X-MS-Exchange-AtpMessageProperties: SA X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:103.96.22.101;CTRY:CA;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:CAN01-YQB-obe.outbound.protection.outlook.com;PTR:mail-yqbcan01on2090.outbound.protection.outlook.com;CAT:NONE;SFS:(13230031)(35950700004)(32650700005)(376005)(82310400014)(61400799018)(32820700001)(41110700001)(17680700008)(41080700001)(41090700016);DIR:OUT;SFP:1501; X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-MS-Exchange-CrossTenant-Network-Message-Id: 963157e1-e1ed-47db-968c-08dc3b146e8f X-MS-Exchange-CrossTenant-Id: 82c514c1-a717-4087-be06-d40d2070ad52 X-MS-Exchange-CrossTenant-AuthSource: SY2PEPF00004FF2.ausprd01.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: Internet X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 Mar 2024 00:55:12.8111 (UTC) X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 72zF84uS59Q+OtBC0pcd3mSuu61dmRXspWVZZuwidWZNk4DnVpHXP/nsYt6Am54QMDTHeBodQXHAyK9K0zF4cVpBuikQDGaeMpGTGftMlI/i1D6GiCGaUg3o8zozO8cnwJq59SHR45TbsdNcYY9wAiUWXqzF3Z+97l6mfdZav0jzmlv4WqeLRCmbnHlPZoNy X-MS-Exchange-Transport-CrossTenantHeadersStamped: SYBPR01MB6399 X-MS-Exchange-UnifiedGroup-DisplayName: Categories mailing list X-MS-Exchange-UnifiedGroup-Address: categories@mq.edu.au X-MS-Exchange-UnifiedGroup-MailboxGuid: 9c2f954e-92a7-451b-b723-a07075d7adb5 X-MS-Exchange-UnifiedGroup-CustomizedMessage: RedeemedBusinessGuests X-MS-Exchange-Parent-Message-Id: Auto-Submitted: auto-generated X-MS-Exchange-Generated-Message-Source: Throttled Fork Delivery Agent X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?Windows-1252?Q?oFTP3/fgvZBwbTNvwYzrrZq2YoGjjV9lUxl1fVrZ2/tyWakXMXawji4A?= =?Windows-1252?Q?mHOhpcMkq62dCEaMymGBVYmzat/T33CBFqAiBIxCA7lqmpkTgFkm7FK/?= =?Windows-1252?Q?vKsPlRmOUlpGM4NPFvjunCKDV594EHGrGnF1kkWIC7gL1C+cMy/IY+f/?= =?Windows-1252?Q?QXzwB2omdWquKla2ppgVGNFhZzwQyGcWv08wV9XAFfy+0uAWf2hhbz1L?= =?Windows-1252?Q?wiMH5SIkEczzQ//7eUq7c2EwwwP1OLzSX00Ff4LRS3rCQ8UKM8SFJxZ2?= =?Windows-1252?Q?KOy4kO45dVDsFcoUntf6J85oz7K5K6Nr7XiOvbW+bWrT5jlrhX1Fbak5?= =?Windows-1252?Q?l1T4SkVjVjGtKkk8KBRFfp/fepRx2gVKVaBSMQr0lXoyu49R1I2ce05O?= =?Windows-1252?Q?Jt1SLUC5h3KyxttgpA3Q7fYyfLWirprP6pjN8oXsXMRvGZXsUt011sIn?= =?Windows-1252?Q?s3VtJvvruwBiYeMJPWpPAs9Y3NBBKTwqkQxRQHYu2y64OyQnu3OtjJbv?= =?Windows-1252?Q?wO+TaaxOySCcRNdWyjMV3JZyL6KWTuqEfFmCPmdAWgLKqJgDFW3jcoH1?= =?Windows-1252?Q?8pUgLtAw0RCpU1Q28jdn5EOFYFFHKrA8reb50vIu2wuI6Ps9mGefk5Ip?= =?Windows-1252?Q?V5bmLLZSbq9DfHFr9RvYiuDU4SAyZ3OYz1YD2+TO9xFwVTqJ/i8bPxGv?= =?Windows-1252?Q?OWqXALu714YW7+qsTYavaGoKbLXV5eWPMQyu8cP89vtWTlJGWogVQSpA?= =?Windows-1252?Q?Bp6QJ2GYj+TmkQOUjlfBpMF9LMgH4KtAlhgSnqtvoz0IArIqqj25VTax?= =?Windows-1252?Q?DhdA4TBO2CEP8Q/S0ID3GHmPt/KVWUOmG7cttVepEptFCdRoeo3pXtHs?= =?Windows-1252?Q?k9t2InpwgyRZ92gXg41x4KJ0PJy/zUufFwQccF6iEW0MUi6rtT4CL8CS?= =?Windows-1252?Q?Vrx1knAZEmjElA12TkIenOx54LfKB3HKCIuSPPJNyaCzQxKg1e7zt6wx?= =?Windows-1252?Q?J155r6zJzwx5s2tZiXVSzjn/4OFDqXzZ1SweIuYsLit6KRl/2Bv+4c/W?= =?Windows-1252?Q?qcb5kk91pgm25zDvISmmxzseSAcUyMsTFREJ0OLR1l172YcG04uqtQib?= =?Windows-1252?Q?1wdO7AJf1Obk4jaT7+yRFuINLW557pGBQIppKHbuaN3m86r8oKyVZnRl?= =?Windows-1252?Q?4NQmGxDl+odWvpJJQEdCQfibPJ4ykgg2RmrSxrJTZUv0T3pKPlFeMT1I?= =?Windows-1252?Q?uuGUbCH+OOSFeCojmt95LcVV5QeEYyOVLK/MjVWjZfuQ1JxGI6nvVnis?= =?Windows-1252?Q?fy/DBc1UyQLXH7n7KxA7grKqoqdZHV0PLONT8lZW9yVKODF4?= X-OriginatorOrg: mq.edu.au --_000_YQXPR01MB3927CD062883A767DC34C6B79C5D2YQXPR01MB3927CANP_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Peter has called my attention to the existence of some historical notes in = the preface to the TAC reprint (TR-3) of Abelian categories. In particular= , he had already essentially discovered the general adjoint functor, at lea= st for reflective subcategories) in his undergrad honors thesis, even thoug= h adjoints had not yet been defined. The preface in the TAC reprint includ= es things not in any other published version of the book. Michael You're receiving this message because you're a member of the Categories mai= ling list group from Macquarie University. To take part in this conversatio= n, reply all to this message. View group files | Leave group | = Learn more about Microsoft 365 Groups --_000_YQXPR01MB3927CD062883A767DC34C6B79C5D2YQXPR01MB3927CANP_ Content-Type: text/html; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable
Peter has called my attention to the existence of some historical notes in = the preface to the TAC reprint (TR-3) of Abelian categories.  In parti= cular, he had already essentially discovered the general adjoint functor, a= t least for reflective subcategories) in his undergrad honors thesis, even though adjoints had not yet been defi= ned.  The preface in the TAC reprint includes things not in any other = published version of the book.

Michael
 
 
You're receiving this message because you're a member of the Categories mai= ling list group from Macquarie University. To take part in this conversatio= n, reply all to this message.
 
View group files   |   Leav= e group   |&n= bsp;  Learn more about Microsoft 365 Groups
 
--_000_YQXPR01MB3927CD062883A767DC34C6B79C5D2YQXPR01MB3927CANP_--