Show that the argument form with premises (p∧t)→…¬s and conclusion q→r is valid
$begingroup$
Stuck on this problem. I want to use the rules of inference to show that the argument form with premises (p∧t)→(r∨s), q→(u∧t),u→p, and ¬s and conclusion q→r is valid. Would really appreciate if someone can help me solve it and explain which rules they used
discrete-mathematics logic
$endgroup$
add a comment |
$begingroup$
Stuck on this problem. I want to use the rules of inference to show that the argument form with premises (p∧t)→(r∨s), q→(u∧t),u→p, and ¬s and conclusion q→r is valid. Would really appreciate if someone can help me solve it and explain which rules they used
discrete-mathematics logic
$endgroup$
1
$begingroup$
Which rules of inference are you allowed to use?
$endgroup$
– Taroccoesbrocco
Jan 25 at 0:35
$begingroup$
@Taroccoesbrocco all of them
$endgroup$
– Nev
Jan 25 at 1:40
$begingroup$
HINT Try a conditional proof
$endgroup$
– Bram28
Jan 25 at 2:54
$begingroup$
@Nev different systems may use different rules (Or rules by different names). Which are yours?
$endgroup$
– Graham Kemp
Jan 25 at 5:59
$begingroup$
@GrahamKemp modus ponens, modus tollens, hypothetical syllogism, disjunctive syllogism, rule of proof by case, rule of contradiction, rule of simplification, rule of addition, rule of resolution
$endgroup$
– Nev
Jan 25 at 19:34
add a comment |
$begingroup$
Stuck on this problem. I want to use the rules of inference to show that the argument form with premises (p∧t)→(r∨s), q→(u∧t),u→p, and ¬s and conclusion q→r is valid. Would really appreciate if someone can help me solve it and explain which rules they used
discrete-mathematics logic
$endgroup$
Stuck on this problem. I want to use the rules of inference to show that the argument form with premises (p∧t)→(r∨s), q→(u∧t),u→p, and ¬s and conclusion q→r is valid. Would really appreciate if someone can help me solve it and explain which rules they used
discrete-mathematics logic
discrete-mathematics logic
asked Jan 24 at 22:45
NevNev
305
305
1
$begingroup$
Which rules of inference are you allowed to use?
$endgroup$
– Taroccoesbrocco
Jan 25 at 0:35
$begingroup$
@Taroccoesbrocco all of them
$endgroup$
– Nev
Jan 25 at 1:40
$begingroup$
HINT Try a conditional proof
$endgroup$
– Bram28
Jan 25 at 2:54
$begingroup$
@Nev different systems may use different rules (Or rules by different names). Which are yours?
$endgroup$
– Graham Kemp
Jan 25 at 5:59
$begingroup$
@GrahamKemp modus ponens, modus tollens, hypothetical syllogism, disjunctive syllogism, rule of proof by case, rule of contradiction, rule of simplification, rule of addition, rule of resolution
$endgroup$
– Nev
Jan 25 at 19:34
add a comment |
1
$begingroup$
Which rules of inference are you allowed to use?
$endgroup$
– Taroccoesbrocco
Jan 25 at 0:35
$begingroup$
@Taroccoesbrocco all of them
$endgroup$
– Nev
Jan 25 at 1:40
$begingroup$
HINT Try a conditional proof
$endgroup$
– Bram28
Jan 25 at 2:54
$begingroup$
@Nev different systems may use different rules (Or rules by different names). Which are yours?
$endgroup$
– Graham Kemp
Jan 25 at 5:59
$begingroup$
@GrahamKemp modus ponens, modus tollens, hypothetical syllogism, disjunctive syllogism, rule of proof by case, rule of contradiction, rule of simplification, rule of addition, rule of resolution
$endgroup$
– Nev
Jan 25 at 19:34
1
1
$begingroup$
Which rules of inference are you allowed to use?
$endgroup$
– Taroccoesbrocco
Jan 25 at 0:35
$begingroup$
Which rules of inference are you allowed to use?
$endgroup$
– Taroccoesbrocco
Jan 25 at 0:35
$begingroup$
@Taroccoesbrocco all of them
$endgroup$
– Nev
Jan 25 at 1:40
$begingroup$
@Taroccoesbrocco all of them
$endgroup$
– Nev
Jan 25 at 1:40
$begingroup$
HINT Try a conditional proof
$endgroup$
– Bram28
Jan 25 at 2:54
$begingroup$
HINT Try a conditional proof
$endgroup$
– Bram28
Jan 25 at 2:54
$begingroup$
@Nev different systems may use different rules (Or rules by different names). Which are yours?
$endgroup$
– Graham Kemp
Jan 25 at 5:59
$begingroup$
@Nev different systems may use different rules (Or rules by different names). Which are yours?
$endgroup$
– Graham Kemp
Jan 25 at 5:59
$begingroup$
@GrahamKemp modus ponens, modus tollens, hypothetical syllogism, disjunctive syllogism, rule of proof by case, rule of contradiction, rule of simplification, rule of addition, rule of resolution
$endgroup$
– Nev
Jan 25 at 19:34
$begingroup$
@GrahamKemp modus ponens, modus tollens, hypothetical syllogism, disjunctive syllogism, rule of proof by case, rule of contradiction, rule of simplification, rule of addition, rule of resolution
$endgroup$
– Nev
Jan 25 at 19:34
add a comment |
0
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',
autoActivateHeartbeat: false,
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
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3086463%2fshow-that-the-argument-form-with-premises-p%25e2%2588%25a7t%25e2%2586%2592-%25c2%25acs-and-conclusion-q%25e2%2586%2592r-is-vali%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Mathematics Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
Use MathJax to format equations. MathJax reference.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3086463%2fshow-that-the-argument-form-with-premises-p%25e2%2588%25a7t%25e2%2586%2592-%25c2%25acs-and-conclusion-q%25e2%2586%2592r-is-vali%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
1
$begingroup$
Which rules of inference are you allowed to use?
$endgroup$
– Taroccoesbrocco
Jan 25 at 0:35
$begingroup$
@Taroccoesbrocco all of them
$endgroup$
– Nev
Jan 25 at 1:40
$begingroup$
HINT Try a conditional proof
$endgroup$
– Bram28
Jan 25 at 2:54
$begingroup$
@Nev different systems may use different rules (Or rules by different names). Which are yours?
$endgroup$
– Graham Kemp
Jan 25 at 5:59
$begingroup$
@GrahamKemp modus ponens, modus tollens, hypothetical syllogism, disjunctive syllogism, rule of proof by case, rule of contradiction, rule of simplification, rule of addition, rule of resolution
$endgroup$
– Nev
Jan 25 at 19:34