If $M$ has a largest proper submodule, then $ M$ is directly indecomposable











up vote
0
down vote

favorite












Can you prove that



"Every module $M$, which has a largest proper submodule or, in the set of non-zero submodules, a smallest submodule, is directly indecomposable?










share|cite|improve this question









New contributor




Fatih is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




















  • Yes, I can. Can you?
    – Tobias Kildetoft
    10 hours ago










  • I will be pleasure if you write the proof, i couldnt proof it
    – Fatih
    9 hours ago















up vote
0
down vote

favorite












Can you prove that



"Every module $M$, which has a largest proper submodule or, in the set of non-zero submodules, a smallest submodule, is directly indecomposable?










share|cite|improve this question









New contributor




Fatih is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




















  • Yes, I can. Can you?
    – Tobias Kildetoft
    10 hours ago










  • I will be pleasure if you write the proof, i couldnt proof it
    – Fatih
    9 hours ago













up vote
0
down vote

favorite









up vote
0
down vote

favorite











Can you prove that



"Every module $M$, which has a largest proper submodule or, in the set of non-zero submodules, a smallest submodule, is directly indecomposable?










share|cite|improve this question









New contributor




Fatih is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











Can you prove that



"Every module $M$, which has a largest proper submodule or, in the set of non-zero submodules, a smallest submodule, is directly indecomposable?







direct-sum






share|cite|improve this question









New contributor




Fatih is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|cite|improve this question









New contributor




Fatih is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|cite|improve this question




share|cite|improve this question








edited 10 hours ago









YukiJ

2,0552828




2,0552828






New contributor




Fatih is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









asked 10 hours ago









Fatih

11




11




New contributor




Fatih is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





Fatih is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






Fatih is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












  • Yes, I can. Can you?
    – Tobias Kildetoft
    10 hours ago










  • I will be pleasure if you write the proof, i couldnt proof it
    – Fatih
    9 hours ago


















  • Yes, I can. Can you?
    – Tobias Kildetoft
    10 hours ago










  • I will be pleasure if you write the proof, i couldnt proof it
    – Fatih
    9 hours ago
















Yes, I can. Can you?
– Tobias Kildetoft
10 hours ago




Yes, I can. Can you?
– Tobias Kildetoft
10 hours ago












I will be pleasure if you write the proof, i couldnt proof it
– Fatih
9 hours ago




I will be pleasure if you write the proof, i couldnt proof it
– Fatih
9 hours ago















active

oldest

votes











Your Answer





StackExchange.ifUsing("editor", function () {
return StackExchange.using("mathjaxEditing", function () {
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
});
});
}, "mathjax-editing");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "69"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});






Fatih is a new contributor. Be nice, and check out our Code of Conduct.










 

draft saved


draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f2996470%2fif-m-has-a-largest-proper-submodule-then-m-is-directly-indecomposable%23new-answer', 'question_page');
}
);

Post as a guest





































active

oldest

votes













active

oldest

votes









active

oldest

votes






active

oldest

votes








Fatih is a new contributor. Be nice, and check out our Code of Conduct.










 

draft saved


draft discarded


















Fatih is a new contributor. Be nice, and check out our Code of Conduct.













Fatih is a new contributor. Be nice, and check out our Code of Conduct.












Fatih is a new contributor. Be nice, and check out our Code of Conduct.















 


draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f2996470%2fif-m-has-a-largest-proper-submodule-then-m-is-directly-indecomposable%23new-answer', 'question_page');
}
);

Post as a guest




















































































Popular posts from this blog

Probability when a professor distributes a quiz and homework assignment to a class of n students.

Aardman Animations

Are they similar matrix