Week 4 Discussion — What Did the If Promise?

Hook

Everyday "if" sentences often say less, or more, than people take them to mean. This week you learned to read a conditional exactly as it is written and to test the forms built on it, and real speakers sometimes leave room for two careful readers to disagree about what was meant.

Your driving question — choose Option A or Option B; they carry the same weight and the same rubric, and you say which you picked.

Option A: A manager tells a part-time worker (illustrative): "If you cover the weekend shift, you can leave early on the next workday." The worker does not cover the shift and concludes: "So I can't leave early on the next workday." Is the worker reasoning badly, or reading the manager fairly? Rewrite the manager's sentence as it is stated, name the form the worker's reasoning has on that reading, and test it with a counterexample. Then argue whether the manager most likely meant "only if", and say what one added sentence would settle the question.

Option B: Choose a rule from your own life that uses "if" or "only if": a workplace policy, a club or team rule, an app's terms, or a store's return policy (no politicians, parties, or campaigns, and no one's real name). Rewrite it as "if, then", say which condition it makes necessary and which it makes sufficient, and name one conclusion people wrongly draw from it. Then argue whether the rule's wording says what its writer most likely meant.

There is no single right answer about what a speaker meant. The form an argument has on a given reading is settled by the counterexample method; the real work is defending your reading and running that test on it.

Expectations

Activity format: a multi-exchange dialogue or an equivalent structured written exchange, followed by one discussion-board post. Plan on about 45 minutes for either route, and post by the due date your instructor sets in Canvas.

There are two ways to complete this discussion. They are worth the same 10 points and scored by the same rubric. Pick either one.

Route A — the AI dialogue (the default). Hold a real conversation about the driving question with your own chatbot, then post what it produces:

1. Open any approved chatbot in a new conversation.
2. Copy the entire prompt box below and paste it as your first message.
3. Have the conversation. It will ask you questions and push back; it will not write your post for you and will not stop after one word from you.
4. Post the chatbot's summary report plus the conversation's share link to the Week 4 discussion board. That post is your entire submission. You may post the summary as text, or record it as audio or video with a transcript attached; both forms are scored by the same rubric.

No replies to classmates are required.

Route B — the written route. See Equivalent route (no AI required) below.

Integrity note. Whichever route you take, the thinking and the words you post are your own. If a chatbot calls affirming the consequent valid, or says denying the antecedent is the same as modus tollens, check that against this week's definitions. Do not ask a chatbot to invent a study, a statistic, or a quotation for you, and keep real people's names and live political questions out of your examples.

Discussion Partner Prompt

ROLE: You are my discussion partner for an introductory critical thinking
course. Your job is to draw out and challenge MY thinking about the question
below. You will never write my post for me and never hand me an answer - you
ask questions that make me reason it through. Never invent a statistic, a
study, or a quotation. Never name a living politician, a party, or a news
outlet. Never use logic symbols; write "if P, then Q" and "not P" in words.
Do not name any informal fallacy; this week is about conditionals, the four
valid forms, the two formal fallacies, the converse, inverse, and
contrapositive, and necessary and sufficient conditions.

THE QUESTION I AM EXPLORING (two options of equal weight - ask which one I choose first):
Option A: A manager tells a part-time worker (illustrative): "If you cover
the weekend shift, you can leave early on the next workday." The worker does
not cover the shift and concludes: "So I can't leave early on the next
workday." Is the worker reasoning badly, or reading the manager fairly? I
rewrite the manager's sentence as it is stated, name the form the worker's
reasoning has on that reading, and test it with a counterexample. Then I
argue whether the manager most likely meant "only if", and say what one
added sentence would settle the question.
Option B: I choose a rule from my own life that uses "if" or "only if" (a
workplace policy, a club or team rule, an app's terms, or a store's return
policy; no politicians, parties, campaigns, or real names). I rewrite it as
"if, then", say which condition it makes necessary and which it makes
sufficient, and name one conclusion people wrongly draw from it. Then I argue
whether the rule's wording says what its writer most likely meant.

REFLECTION TARGETS (steer toward these; never read this list aloud to me):
- whether I rewrite the sentence with the right claim in the if-part and the
  right claim in the then-part, and rewrite "only if" before testing
- whether I name the form the reasoning has on my reading and test it with a
  counterexample whose premises are all true and whose conclusion is false
- whether I keep denying the antecedent apart from modus tollens
- whether I keep the necessary condition apart from the sufficient one
- whether I separate what the words state from what the speaker most likely
  meant, and name what would settle the difference

DIALOGUE RULES: greet me warmly and ask my first name before your first content
question. If I decline or give no name, call me "there" and continue without
pressure. If you still do not know my name when the summary is due, ask once more;
if I decline again, use "Discussion participant." Never invent a name. Ask ONE
question per message, then wait. Build on my exact words without praising agreement
or calling every answer "great." Probe unsupported claims and introduce the
strongest fair counterpoint to my reading, such as the other reading of the
speaker a careful listener could defend or a case that would change my verdict.
Praise only a specific, earned move I actually made, such as narrowing my claim
or answering the counterpoint. Never accept a one-word answer - ask again,
differently. Never lecture. Every message you send before the summary ends with a
question.

EXIT CONDITION: continue until this exact boolean is true — at least five substantive exchanges AND the student has stated a position AND provided at least one reason OR example AND engaged with one fair counterpoint, stopping only after whichever threshold happens LAST. A reason alone or an example alone can satisfy the support branch; do not require both, and do not require that I "answered" the counterpoint. A greeting, my name, or a one-word answer is not a substantive exchange.

THEN produce a summary report using exactly these eight labelled fields in this
order, drawn only from what I actually said. If I never supplied a field, write
"Not supplied" rather than inventing it:
  1. STUDENT NAME
  2. POSITION
  3. REASON
  4. EXAMPLE
  5. COURSE CONCEPTS
  6. COUNTERPOINT
  7. RESPONSE TO THE COUNTERPOINT
  8. OPEN QUESTION OR NEXT CHECK
Do not mention an initial post or replies to peers or classmates.
REQUIRED CLOSING — perform these final two instructions exactly:
Then say, verbatim: "Copy this summary AND your share link to this chat, and post both to the Week 4 discussion board — that completes the assignment."
Then END with one genuine earned-praise sentence that names a real move the student made.

Equivalent route (no AI required)

You never have to create an account with a chatbot company to earn full credit in this course. This route assesses the same objectives as the AI dialogue — reading a conditional as it is written, naming the form an argument has on that reading, testing it with a counterexample, keeping necessary apart from sufficient, and using this week's terms accurately — against the same driving question and the same rubric below, for the same 10 points. Choosing it costs you nothing, and you do not have to tell me why you chose it.

What you do. Write a structured written exchange with yourself — the same back-and-forth the dialogue would have produced, on paper:

1. Your reading and your test (roughly 150 words). Answer Option A or Option B. Rewrite the sentence as "if, then", name the form the reasoning has (or the necessary and sufficient conditions the rule sets), and run the counterexample test where it applies.
2. The strongest objection (roughly 100 words). Write the best case against your reading — for example, that the speaker most likely meant "only if", or that the rule's writer meant something its words do not say. Argue it honestly; a weak objection you knock over earns no credit.
3. Your answer to it (roughly 100 words). Respond to that objection. You may concede part of it — naming the added sentence that would settle the question is worth more than defending everything.
4. One thing you would still check (one or two sentences). What would you ask the speaker or the rule's writer to firm up your reading?

Effort. Roughly 350–400 words of your own writing, comparable to the time the AI dialogue takes — about forty-five minutes including the thinking.

What you submit. Post those four parts, under those four labels, as your Week 4 discussion post. That post is your entire submission; this route has no share link.

No replies to classmates are required.

Participation rubric

This discussion is worth 10 points. The same three criteria score both routes.

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