answer
string
choices
dict
id
string
kind
string
lang
string
question
string
steps
list
subject
string
text
string
topic
string
The term ends in 2021.
{ "A": "2020", "B": "2022", "C": "2021", "D": "2023" }
law_0251
multiple_choice
en
A parliament elected in 2016 serves 5 years. When does the term end?
[ "Elected 2016.", "Add 5: 2021.", "Select option C." ]
law
Answer: 2021 Steps: 1. Elected 2016. 2. Add 5: 2021. 3. Select option C. Answer: (C)
eu_basics
Apologies can admit fault in court, so lawyers word them to express regret without conceding liability.
null
law_0252
concept
en
Why apologize carefully?
[ "Apologies can admit fault in court, so lawyers word them to express regret without conceding liability.", "So the answer stands: Apologies can admit fault in court, so lawyers word them to express regret without conceding liability." ]
law
Answer: Apologies can admit fault in court, so lawyers word them to express regret without conceding liability. Steps: 1. Apologies can admit fault in court, so lawyers word them to express regret without conceding liability. 2. So the answer stands: Apologies can admit fault in court, so lawyers word them to express r...
tort
Adoption creates a full parent-child bond by court order, giving the child the same rights as a biological child.
null
law_0253
concept
en
What is adoption?
[ "Adoption creates a full parent-child bond by court order, giving the child the same rights as a biological child.", "So the answer stands: Adoption creates a full parent-child bond by court order, giving the child the same rights as a biological child." ]
law
Answer: Adoption creates a full parent-child bond by court order, giving the child the same rights as a biological child. Steps: 1. Adoption creates a full parent-child bond by court order, giving the child the same rights as a biological child. 2. So the answer stands: Adoption creates a full parent-child bond by cour...
civil
Parole after 15 months.
null
law_0254
worked_example
en
A sentence of 30 months allows parole after half. Find the parole month.
[ "Total 30.", "Halve it.", "30 / 2 = 15." ]
law
Answer: Parole after 15 months. Steps: 1. Total 30. 2. Halve it. 3. 30 / 2 = 15.
criminal
Deadline: day 11.
null
law_0255
worked_example
en
Delivery is due 10 days after day 1. Find the deadline day.
[ "Start day 1.", "Add 10.", "1 + 10 = 11." ]
law
Answer: Deadline: day 11. Steps: 1. Start day 1. 2. Add 10. 3. 1 + 10 = 11.
contracts
Dělení moci brání tyranii, protože se zákonodárná, výkonná a soudní moc hlídají.
null
law_0256
concept
cs
Proč dělit moc?
[ "Dělení moci brání tyranii, protože se zákonodárná, výkonná a soudní moc hlídají.", "Odpověď tedy platí: Dělení moci brání tyranii, protože se zákonodárná, výkonná a soudní moc hlídají." ]
law
Answer: Dělení moci brání tyranii, protože se zákonodárná, výkonná a soudní moc hlídají. Steps: 1. Dělení moci brání tyranii, protože se zákonodárná, výkonná a soudní moc hlídají. 2. Odpověď tedy platí: Dělení moci brání tyranii, protože se zákonodárná, výkonná a soudní moc hlídají.
constitutional
Je třeba 5 dalších států.
{ "A": "4", "B": "5", "C": "6", "D": "7" }
law_0257
multiple_choice
cs
Návrh potřebuje 15 států a má 10. Kolik dalších je třeba?
[ "Třeba 15, má 10.", "Chybí: 5.", "Vyber možnost B." ]
law
Answer: 5 Steps: 1. Třeba 15, má 10. 2. Chybí: 5. 3. Vyber možnost B. Answer: (B)
eu_basics
Zavinění spojuje škůdce se škodou, platit musí jen ten, kdo škodu způsobil.
null
law_0258
concept
cs
Proč prokazovat zavinění?
[ "Zavinění spojuje škůdce se škodou, platit musí jen ten, kdo škodu způsobil.", "Odpověď tedy platí: Zavinění spojuje škůdce se škodou, platit musí jen ten, kdo škodu způsobil." ]
law
Answer: Zavinění spojuje škůdce se škodou, platit musí jen ten, kdo škodu způsobil. Steps: 1. Zavinění spojuje škůdce se škodou, platit musí jen ten, kdo škodu způsobil. 2. Odpověď tedy platí: Zavinění spojuje škůdce se škodou, platit musí jen ten, kdo škodu způsobil.
tort
Notarized documents carry stronger proof in court, because a notary verifies identity, consent, and understanding.
null
law_0259
concept
en
Why notarize documents?
[ "Notarized documents carry stronger proof in court, because a notary verifies identity, consent, and understanding.", "So the answer stands: Notarized documents carry stronger proof in court, because a notary verifies identity, consent, and understanding." ]
law
Answer: Notarized documents carry stronger proof in court, because a notary verifies identity, consent, and understanding. Steps: 1. Notarized documents carry stronger proof in court, because a notary verifies identity, consent, and understanding. 2. So the answer stands: Notarized documents carry stronger proof in cou...
civil
One part: 1600.
null
law_0260
worked_example
en
A fine of 8000 is paid in 5 equal parts. Find one part.
[ "Total 8000.", "Divide by 5.", "8000 / 5 = 1600." ]
law
Answer: One part: 1600. Steps: 1. Total 8000. 2. Divide by 5. 3. 8000 / 5 = 1600.
criminal
Notice periods let both sides prepare for contract end, preventing sudden loss of home or income.
null
law_0261
concept
en
Why give notice periods?
[ "Notice periods let both sides prepare for contract end, preventing sudden loss of home or income.", "So the answer stands: Notice periods let both sides prepare for contract end, preventing sudden loss of home or income." ]
law
Answer: Notice periods let both sides prepare for contract end, preventing sudden loss of home or income. Steps: 1. Notice periods let both sides prepare for contract end, preventing sudden loss of home or income. 2. So the answer stands: Notice periods let both sides prepare for contract end, preventing sudden loss of...
contracts
Term ends: 2028.
null
law_0262
worked_example
en
A senator elected in 2022 serves 6 years. Find the term end year.
[ "Elected 2022.", "Add 6.", "2022 + 6 = 2028." ]
law
Answer: Term ends: 2028. Steps: 1. Elected 2022. 2. Add 6. 3. 2022 + 6 = 2028.
constitutional
3 more states are needed.
{ "A": "2", "B": "4", "C": "5", "D": "3" }
law_0263
multiple_choice
en
A proposal needs 15 states on board and has 12. How many more are needed?
[ "Need 15, have 12.", "Missing: 3.", "Select option D." ]
law
Answer: 3 Steps: 1. Need 15, have 12. 2. Missing: 3. 3. Select option D. Answer: (D)
eu_basics
Promlčí se roku 2021.
{ "A": "2020", "B": "2022", "C": "2021", "D": "2023" }
law_0264
multiple_choice
cs
Škoda vznikla roku 2018 s tříletou lhůtou. Kdy se nárok promlčí?
[ "Začátek 2018.", "Přičti 3: 2021.", "Vyber možnost C." ]
law
Answer: 2021 Steps: 1. Začátek 2018. 2. Přičti 3: 2021. 3. Vyber možnost C. Answer: (C)
tort
One share is 225000.
{ "A": "220000", "B": "230000", "C": "235000", "D": "225000" }
law_0265
multiple_choice
en
An estate of 900000 is split equally among 4 heirs. What is one share?
[ "Total 900000.", "Divide by 4: 225000.", "Select option D." ]
law
Answer: 225000 Steps: 1. Total 900000. 2. Divide by 4: 225000. 3. Select option D. Answer: (D)
civil
Responsible from 2025.
null
law_0266
worked_example
en
A child was born in 2010. Find the first year of criminal responsibility (age 15).
[ "Born 2010.", "Add 15.", "2010 + 15 = 2025." ]
law
Answer: Responsible from 2025. Steps: 1. Born 2010. 2. Add 15. 3. 2010 + 15 = 2025.
criminal
A loan contract obliges repayment of money with agreed interest, and lenders must disclose the true cost.
null
law_0267
concept
en
What is a loan contract?
[ "A loan contract obliges repayment of money with agreed interest, and lenders must disclose the true cost.", "So the answer stands: A loan contract obliges repayment of money with agreed interest, and lenders must disclose the true cost." ]
law
Answer: A loan contract obliges repayment of money with agreed interest, and lenders must disclose the true cost. Steps: 1. A loan contract obliges repayment of money with agreed interest, and lenders must disclose the true cost. 2. So the answer stands: A loan contract obliges repayment of money with agreed interest, ...
contracts
Lidská práva jsou základní svobody jako projev a spravedlivý proces, jež stát ctí.
null
law_0268
concept
cs
Co jsou lidská práva?
[ "Lidská práva jsou základní svobody jako projev a spravedlivý proces, jež stát ctí.", "Odpověď tedy platí: Lidská práva jsou základní svobody jako projev a spravedlivý proces, jež stát ctí." ]
law
Answer: Lidská práva jsou základní svobody jako projev a spravedlivý proces, jež stát ctí. Steps: 1. Lidská práva jsou základní svobody jako projev a spravedlivý proces, jež stát ctí. 2. Odpověď tedy platí: Lidská práva jsou základní svobody jako projev a spravedlivý proces, jež stát ctí.
constitutional
GDPR gives people control over personal data, forcing companies to ask consent and protect privacy.
null
law_0269
concept
en
What is GDPR?
[ "GDPR gives people control over personal data, forcing companies to ask consent and protect privacy.", "So the answer stands: GDPR gives people control over personal data, forcing companies to ask consent and protect privacy." ]
law
Answer: GDPR gives people control over personal data, forcing companies to ask consent and protect privacy. Steps: 1. GDPR gives people control over personal data, forcing companies to ask consent and protect privacy. 2. So the answer stands: GDPR gives people control over personal data, forcing companies to ask consen...
eu_basics
Celková náhrada: 57000.
null
law_0270
worked_example
cs
Léčba stojí 27000 a ušlá mzda 30000. Zjisti celkovou náhradu.
[ "Léčba 27000.", "Mzda 30000.", "27000 + 30000 = 57000." ]
law
Answer: Celková náhrada: 57000. Steps: 1. Léčba 27000. 2. Mzda 30000. 3. 27000 + 30000 = 57000.
tort
Celkem: 12000.
null
law_0271
worked_example
cs
Ve sporu se žádá 10000 plus náklady 2000. Zjisti celkovou částku.
[ "Nárok 10000.", "Přičti náklady 2000.", "10000 + 2000 = 12000." ]
law
Answer: Celkem: 12000. Steps: 1. Nárok 10000. 2. Přičti náklady 2000. 3. 10000 + 2000 = 12000.
civil
Parole after 18 months.
null
law_0272
worked_example
en
A sentence of 36 months allows parole after half. Find the parole month.
[ "Total 36.", "Halve it.", "36 / 2 = 18." ]
law
Answer: Parole after 18 months. Steps: 1. Total 36. 2. Halve it. 3. 36 / 2 = 18.
criminal
The total is 700.
{ "A": "600", "B": "800", "C": "900", "D": "700" }
law_0273
multiple_choice
en
A penalty of 100 per day runs for 7 days. What is the total?
[ "100 × 7.", "Total: 700.", "Select option D." ]
law
Answer: 700 Steps: 1. 100 × 7. 2. Total: 700. 3. Select option D. Answer: (D)
contracts
Další volby: 2017.
null
law_0274
worked_example
cs
Sněmovna zvolená roku 2013 slouží 4 roky. Zjisti rok dalších voleb.
[ "Zvolena 2013.", "Přičti 4.", "2013 + 4 = 2017." ]
law
Answer: Další volby: 2017. Steps: 1. Zvolena 2013. 2. Přičti 4. 3. 2013 + 4 = 2017.
constitutional
EU funds build roads and schools in poorer regions, narrowing gaps between member states.
null
law_0275
concept
en
Why fund regions?
[ "EU funds build roads and schools in poorer regions, narrowing gaps between member states.", "So the answer stands: EU funds build roads and schools in poorer regions, narrowing gaps between member states." ]
law
Answer: EU funds build roads and schools in poorer regions, narrowing gaps between member states. Steps: 1. EU funds build roads and schools in poorer regions, narrowing gaps between member states. 2. So the answer stands: EU funds build roads and schools in poorer regions, narrowing gaps between member states.
eu_basics
Total damages are 60000.
{ "A": "55000", "B": "65000", "C": "60000", "D": "70000" }
law_0276
multiple_choice
en
Medical costs are 30000 and lost wages 30000. What are total damages?
[ "30000 + 30000.", "Total: 60000.", "Select option C." ]
law
Answer: 60000 Steps: 1. 30000 + 30000. 2. Total: 60000. 3. Select option C. Answer: (C)
tort
Zletilosti dosáhne roku 2018.
{ "A": "2017", "B": "2019", "C": "2018", "D": "2020" }
law_0277
multiple_choice
cs
Dítě se narodilo roku 2000. Ve kterém roce dosáhne 18 let?
[ "Narozeno 2000.", "Přičti 18: 2018.", "Vyber možnost C." ]
law
Answer: 2018 Steps: 1. Narozeno 2000. 2. Přičti 18: 2018. 3. Vyber možnost C. Answer: (C)
civil
After 12 months.
{ "A": "10", "B": "14", "C": "16", "D": "12" }
law_0278
multiple_choice
en
A sentence of 24 months allows parole after half. After how many months?
[ "Total 24.", "Half: 12.", "Select option D." ]
law
Answer: 12 Steps: 1. Total 24. 2. Half: 12. 3. Select option D. Answer: (D)
criminal
Total with tax: 42350.
null
law_0279
worked_example
en
A price of 35000 carries 21% VAT. Find the total with tax.
[ "Base 35000.", "Multiply by 1.21.", "35000 × 1.21 = 42350." ]
law
Answer: Total with tax: 42350. Steps: 1. Base 35000. 2. Multiply by 1.21. 3. 35000 × 1.21 = 42350.
contracts
It is 4 votes short.
{ "A": "3", "B": "5", "C": "6", "D": "4" }
law_0280
multiple_choice
en
A motion needs 101 of 200 votes and gets 97. How many votes short?
[ "Need 101, got 97.", "Short: 4.", "Select option D." ]
law
Answer: 4 Steps: 1. Need 101, got 97. 2. Short: 4. 3. Select option D. Answer: (D)
constitutional
Obsadí se 54 míst.
{ "A": "27", "B": "81", "C": "54", "D": "108" }
law_0281
multiple_choice
cs
Každý z 27 států vysílá 1 ministra na 2 zasedání. Kolik míst se obsadí?
[ "27 × 2.", "Celkem: 54.", "Vyber možnost C." ]
law
Answer: 54 Steps: 1. 27 × 2. 2. Celkem: 54. 3. Vyber možnost C. Answer: (C)
eu_basics
Náhrada vrací poškozeného do původního stavu, kryje účty, opravy a ušlý příjem.
null
law_0282
concept
cs
Co je náhrada škody?
[ "Náhrada vrací poškozeného do původního stavu, kryje účty, opravy a ušlý příjem.", "Odpověď tedy platí: Náhrada vrací poškozeného do původního stavu, kryje účty, opravy a ušlý příjem." ]
law
Answer: Náhrada vrací poškozeného do původního stavu, kryje účty, opravy a ušlý příjem. Steps: 1. Náhrada vrací poškozeného do původního stavu, kryje účty, opravy a ušlý příjem. 2. Odpověď tedy platí: Náhrada vrací poškozeného do původního stavu, kryje účty, opravy a ušlý příjem.
tort
One share: 500000.
null
law_0283
worked_example
en
An estate of 1500000 is split equally among 3 heirs. Find one share.
[ "Total 1500000.", "Divide by 3.", "1500000 / 3 = 500000." ]
law
Answer: One share: 500000. Steps: 1. Total 1500000. 2. Divide by 3. 3. 1500000 / 3 = 500000.
civil
Krádež je přisvojení cizí věci a trest roste s hodnotou a opakováním.
null
law_0284
concept
cs
Co je krádež?
[ "Krádež je přisvojení cizí věci a trest roste s hodnotou a opakováním.", "Odpověď tedy platí: Krádež je přisvojení cizí věci a trest roste s hodnotou a opakováním." ]
law
Answer: Krádež je přisvojení cizí věci a trest roste s hodnotou a opakováním. Steps: 1. Krádež je přisvojení cizí věci a trest roste s hodnotou a opakováním. 2. Odpověď tedy platí: Krádež je přisvojení cizí věci a trest roste s hodnotou a opakováním.
criminal
Interest caps stop predatory lending, so desperate borrowers cannot be trapped by extreme rates.
null
law_0285
concept
en
Why cap interest?
[ "Interest caps stop predatory lending, so desperate borrowers cannot be trapped by extreme rates.", "So the answer stands: Interest caps stop predatory lending, so desperate borrowers cannot be trapped by extreme rates." ]
law
Answer: Interest caps stop predatory lending, so desperate borrowers cannot be trapped by extreme rates. Steps: 1. Interest caps stop predatory lending, so desperate borrowers cannot be trapped by extreme rates. 2. So the answer stands: Interest caps stop predatory lending, so desperate borrowers cannot be trapped by e...
contracts
Období končí roku 2005.
{ "A": "2004", "B": "2006", "C": "2005", "D": "2007" }
law_0286
multiple_choice
cs
Prezident inaugurovaný roku 2000 slouží 5 let. Kdy období končí?
[ "Začátek 2000.", "Přičti 5: 2005.", "Vyber možnost C." ]
law
Answer: 2005 Steps: 1. Začátek 2000. 2. Přičti 5: 2005. 3. Vyber možnost C. Answer: (C)
constitutional
Missing: 2 states.
null
law_0287
worked_example
en
A proposal needs 15 states on board and has 13. Find the missing states.
[ "Need 15, have 13.", "15 − 13 = 2." ]
law
Answer: Missing: 2 states. Steps: 1. Need 15, have 13. 2. 15 − 13 = 2.
eu_basics
One part is 5000.
{ "A": "4750", "B": "5250", "C": "5500", "D": "5000" }
law_0288
multiple_choice
en
An award of 60000 is paid in 12 monthly parts. How large is one part?
[ "60000 / 12.", "Part: 5000.", "Select option D." ]
law
Answer: 5000 Steps: 1. 60000 / 12. 2. Part: 5000. 3. Select option D. Answer: (D)
tort
A power of attorney lets one person act legally for another, and it ends if revoked, expired, or the principal dies.
null
law_0289
concept
en
What is a power of attorney?
[ "A power of attorney lets one person act legally for another, and it ends if revoked, expired, or the principal dies.", "So the answer stands: A power of attorney lets one person act legally for another, and it ends if revoked, expired, or the principal dies." ]
law
Answer: A power of attorney lets one person act legally for another, and it ends if revoked, expired, or the principal dies. Steps: 1. A power of attorney lets one person act legally for another, and it ends if revoked, expired, or the principal dies. 2. So the answer stands: A power of attorney lets one person act leg...
civil
Corruption trades public power for private gain, so it is punished to protect fair decisions and trust.
null
law_0290
concept
en
Why punish corruption?
[ "Corruption trades public power for private gain, so it is punished to protect fair decisions and trust.", "So the answer stands: Corruption trades public power for private gain, so it is punished to protect fair decisions and trust." ]
law
Answer: Corruption trades public power for private gain, so it is punished to protect fair decisions and trust. Steps: 1. Corruption trades public power for private gain, so it is punished to protect fair decisions and trust. 2. So the answer stands: Corruption trades public power for private gain, so it is punished to...
criminal
Total penalty: 1000.
null
law_0291
worked_example
en
A penalty of 100 per day runs for 10 days. Find the total penalty.
[ "100 per day.", "10 days.", "100 × 10 = 1000." ]
law
Answer: Total penalty: 1000. Steps: 1. 100 per day. 2. 10 days. 3. 100 × 10 = 1000.
contracts
Next election: 2023.
null
law_0292
worked_example
en
A chamber elected in 2019 serves 4 years. Find the next election year.
[ "Elected 2019.", "Add 4.", "2019 + 4 = 2023." ]
law
Answer: Next election: 2023. Steps: 1. Elected 2019. 2. Add 4. 3. 2019 + 4 = 2023.
constitutional
The Council gathers national ministers to adopt EU laws together with the Parliament.
null
law_0293
concept
en
What is the Council?
[ "The Council gathers national ministers to adopt EU laws together with the Parliament.", "So the answer stands: The Council gathers national ministers to adopt EU laws together with the Parliament." ]
law
Answer: The Council gathers national ministers to adopt EU laws together with the Parliament. Steps: 1. The Council gathers national ministers to adopt EU laws together with the Parliament. 2. So the answer stands: The Council gathers national ministers to adopt EU laws together with the Parliament.
eu_basics
Makers pay for harm from defective products, pushing them to test safety before selling.
null
law_0294
concept
en
What is product liability?
[ "Makers pay for harm from defective products, pushing them to test safety before selling.", "So the answer stands: Makers pay for harm from defective products, pushing them to test safety before selling." ]
law
Answer: Makers pay for harm from defective products, pushing them to test safety before selling. Steps: 1. Makers pay for harm from defective products, pushing them to test safety before selling. 2. So the answer stands: Makers pay for harm from defective products, pushing them to test safety before selling.
tort
Appeals let higher courts fix legal errors, so similar cases get consistent and fair treatment.
null
law_0295
concept
en
Why do courts use appeals?
[ "Appeals let higher courts fix legal errors, so similar cases get consistent and fair treatment.", "So the answer stands: Appeals let higher courts fix legal errors, so similar cases get consistent and fair treatment." ]
law
Answer: Appeals let higher courts fix legal errors, so similar cases get consistent and fair treatment. Steps: 1. Appeals let higher courts fix legal errors, so similar cases get consistent and fair treatment. 2. So the answer stands: Appeals let higher courts fix legal errors, so similar cases get consistent and fair ...
civil
Promlčí se roku 2020.
{ "A": "2019", "B": "2021", "C": "2020", "D": "2022" }
law_0296
multiple_choice
cs
Čin z roku 2015 má pětiletou promlčecí lhůtu. Kdy se promlčí?
[ "Začátek 2015.", "Přičti 5: 2020.", "Vyber možnost C." ]
law
Answer: 2020 Steps: 1. Začátek 2015. 2. Přičti 5: 2020. 3. Vyber možnost C. Answer: (C)
criminal
Pokuta je ujednaná částka za porušení, ale soud ji může snížit při hrubém nepoměru.
null
law_0297
concept
cs
Proč platit smluvní pokutu?
[ "Pokuta je ujednaná částka za porušení, ale soud ji může snížit při hrubém nepoměru.", "Odpověď tedy platí: Pokuta je ujednaná částka za porušení, ale soud ji může snížit při hrubém nepoměru." ]
law
Answer: Pokuta je ujednaná částka za porušení, ale soud ji může snížit při hrubém nepoměru. Steps: 1. Pokuta je ujednaná částka za porušení, ale soud ji může snížit při hrubém nepoměru. 2. Odpověď tedy platí: Pokuta je ujednaná částka za porušení, ale soud ji může snížit při hrubém nepoměru.
contracts
Missing: 3 votes.
null
law_0298
worked_example
en
A motion needs 101 of 200 votes and gets 98. Find the missing votes.
[ "Need 101, got 98.", "101 − 98 = 3." ]
law
Answer: Missing: 3 votes. Steps: 1. Need 101, got 98. 2. 101 − 98 = 3.
constitutional
Tax and foreign policy need all states to agree, protecting sovereignty on sensitive issues.
null
law_0299
concept
en
Why need unanimity sometimes?
[ "Tax and foreign policy need all states to agree, protecting sovereignty on sensitive issues.", "So the answer stands: Tax and foreign policy need all states to agree, protecting sovereignty on sensitive issues." ]
law
Answer: Tax and foreign policy need all states to agree, protecting sovereignty on sensitive issues. Steps: 1. Tax and foreign policy need all states to agree, protecting sovereignty on sensitive issues. 2. So the answer stands: Tax and foreign policy need all states to agree, protecting sovereignty on sensitive issues...
eu_basics
Settlements pay victims faster than trials and spare both sides cost, stress, and uncertainty.
null
law_0300
concept
en
Why settle injury claims?
[ "Settlements pay victims faster than trials and spare both sides cost, stress, and uncertainty.", "So the answer stands: Settlements pay victims faster than trials and spare both sides cost, stress, and uncertainty." ]
law
Answer: Settlements pay victims faster than trials and spare both sides cost, stress, and uncertainty. Steps: 1. Settlements pay victims faster than trials and spare both sides cost, stress, and uncertainty. 2. So the answer stands: Settlements pay victims faster than trials and spare both sides cost, stress, and uncer...
tort
A direct proof assumes the premises and derives the conclusion step by step, so each line follows logically from earlier ones.
null
mat_0001
concept
en
What is a direct proof?
[ "A direct proof assumes the premises and derives the conclusion step by step, so each line follows logically from earlier ones.", "So the answer stands: A direct proof assumes the premises and derives the conclusion step by step, so each line follows logically from earlier ones." ]
math
Answer: A direct proof assumes the premises and derives the conclusion step by step, so each line follows logically from earlier ones. Steps: 1. A direct proof assumes the premises and derives the conclusion step by step, so each line follows logically from earlier ones. 2. So the answer stands: A direct proof assumes ...
proofs
f'(2) = 9.
null
mat_0002
worked_example
en
For f(x) = 2x² + 1x, compute f'(2) step by step.
[ "f'(x) = 4x + 1.", "Plug x = 2.", "4×2 + 1 = 9." ]
math
Answer: f'(2) = 9. Steps: 1. f'(x) = 4x + 1. 2. Plug x = 2. 3. 4×2 + 1 = 9.
calculus
Determinant: 4.
null
mat_0003
worked_example
cs
Spočítej det [[2,1],[2,3]] krok za krokem.
[ "ad − bc.", "2×3 − 1×2.", "= 4." ]
math
Answer: Determinant: 4. Steps: 1. ad − bc. 2. 2×3 − 1×2. 3. = 4.
linear_algebra
Probability measures chance from 0 to 1, with axioms guaranteeing consistent reasoning about uncertainty.
null
mat_0004
concept
en
What is probability?
[ "Probability measures chance from 0 to 1, with axioms guaranteeing consistent reasoning about uncertainty.", "So the answer stands: Probability measures chance from 0 to 1, with axioms guaranteeing consistent reasoning about uncertainty." ]
math
Answer: Probability measures chance from 0 to 1, with axioms guaranteeing consistent reasoning about uncertainty. Steps: 1. Probability measures chance from 0 to 1, with axioms guaranteeing consistent reasoning about uncertainty. 2. So the answer stands: Probability measures chance from 0 to 1, with axioms guaranteeing...
probability
a divides b if some integer k gives b = ak, the root relation of number theory.
null
mat_0005
concept
en
What is divisibility?
[ "a divides b if some integer k gives b = ak, the root relation of number theory.", "So the answer stands: a divides b if some integer k gives b = ak, the root relation of number theory." ]
math
Answer: a divides b if some integer k gives b = ak, the root relation of number theory. Steps: 1. a divides b if some integer k gives b = ak, the root relation of number theory. 2. So the answer stands: a divides b if some integer k gives b = ak, the root relation of number theory.
number_theory
C(4,2) is 6.
{ "A": "6", "B": "2", "C": "10", "D": "14" }
mat_0006
multiple_choice
en
Compute C(4,2).
[ "4×3/2.", "= 6.", "Select option A." ]
math
Answer: 6 Steps: 1. 4×3/2. 2. = 6. 3. Select option A. Answer: (A)
combinatorics
Sum: 21.
null
mat_0007
worked_example
en
Prove by formula: find the sum 1 + 2 + ... + 6.
[ "Pair 1+6, 2+5, ...", "Use 6×7/2.", "= 21." ]
math
Answer: Sum: 21. Steps: 1. Pair 1+6, 2+5, ... 2. Use 6×7/2. 3. = 21.
proofs
Integral: 27.
null
mat_0008
worked_example
en
Evaluate the integral of 3x² from 0 to 3.
[ "Antiderivative: x³.", "Evaluate 0 to 3.", "3³ − 0 = 27." ]
math
Answer: Integral: 27. Steps: 1. Antiderivative: x³. 2. Evaluate 0 to 3. 3. 3³ − 0 = 27.
calculus
Determinant: 4.
null
mat_0009
worked_example
en
Compute det [[2,1],[2,3]] step by step.
[ "ad − bc.", "2×3 − 1×2.", "= 4." ]
math
Answer: Determinant: 4. Steps: 1. ad − bc. 2. 2×3 − 1×2. 3. = 4.
linear_algebra
P = 1/6.
null
mat_0010
worked_example
en
A fair 6-sided die is rolled. Show P(one specific number).
[ "Favourable: 1.", "Possible: 6.", "P = 1/6." ]
math
Answer: P = 1/6. Steps: 1. Favourable: 1. 2. Possible: 6. 3. P = 1/6.
probability
Primes are the atoms of multiplication, since every integer factors uniquely into primes.
null
mat_0011
concept
en
Why study primes?
[ "Primes are the atoms of multiplication, since every integer factors uniquely into primes.", "So the answer stands: Primes are the atoms of multiplication, since every integer factors uniquely into primes." ]
math
Answer: Primes are the atoms of multiplication, since every integer factors uniquely into primes. Steps: 1. Primes are the atoms of multiplication, since every integer factors uniquely into primes. 2. So the answer stands: Primes are the atoms of multiplication, since every integer factors uniquely into primes.
number_theory
C(5,2) = 10.
null
mat_0012
worked_example
en
Show the computation of C(5,2).
[ "Formula n(n−1)/2.", "5×4/2.", "= 10." ]
math
Answer: C(5,2) = 10. Steps: 1. Formula n(n−1)/2. 2. 5×4/2. 3. = 10.
combinatorics
Half: 3, so 6 is even.
null
mat_0013
worked_example
en
Show N² + N is even for N = 2 by computing its half.
[ "2² + 2 = 6.", "6 / 2 = 3.", "Integer, so even." ]
math
Answer: Half: 3, so 6 is even. Steps: 1. 2² + 2 = 6. 2. 6 / 2 = 3. 3. Integer, so even.
proofs
Limit: 6.
null
mat_0014
worked_example
en
Evaluate the limit of (x² − 3²)/(x − 3) as x → 3.
[ "Factor: (x−3)(x+3).", "Cancel (x−3).", "Plug 3: 3+3 = 6." ]
math
Answer: Limit: 6. Steps: 1. Factor: (x−3)(x+3). 2. Cancel (x−3). 3. Plug 3: 3+3 = 6.
calculus
Trace: 7.
null
mat_0015
worked_example
en
Compute the trace of [[3,0],[0,4]].
[ "Sum diagonal.", "3 + 4.", "= 7." ]
math
Answer: Trace: 7. Steps: 1. Sum diagonal. 2. 3 + 4. 3. = 7.
linear_algebra
E = 3.
null
mat_0016
worked_example
en
Compute E of a uniform draw from {1..5}.
[ "Mean of 1..5.", "(5+1)/2.", "E = 3." ]
math
Answer: E = 3. Steps: 1. Mean of 1..5. 2. (5+1)/2. 3. E = 3.
probability
NSD je 6.
{ "A": "6", "B": "3", "C": "9", "D": "12" }
mat_0017
multiple_choice
cs
Najdi největšího společného dělitele NSD(12, 18).
[ "Vytkni 3 dvakrát.", "NSD = 6.", "Vyber možnost A." ]
math
Answer: 6 Steps: 1. Vytkni 3 dvakrát. 2. NSD = 6. 3. Vyber možnost A. Answer: (A)
number_theory
P(4,3) = 24.
null
mat_0018
worked_example
en
Show the computation of P(4,3).
[ "n(n−1)(n−2).", "4×3×2.", "= 24." ]
math
Answer: P(4,3) = 24. Steps: 1. n(n−1)(n−2). 2. 4×3×2. 3. = 24.
combinatorics
Rows: 8.
null
mat_0019
worked_example
en
A proof checks all cases of 3 boolean variables. How many rows?
[ "2 choices each.", "2^3 = 8." ]
math
Answer: Rows: 8. Steps: 1. 2 choices each. 2. 2^3 = 8.
proofs
A limit is the value a function approaches as inputs near a point, even if the function is undefined there.
null
mat_0020
concept
en
What is a limit?
[ "A limit is the value a function approaches as inputs near a point, even if the function is undefined there.", "So the answer stands: A limit is the value a function approaches as inputs near a point, even if the function is undefined there." ]
math
Answer: A limit is the value a function approaches as inputs near a point, even if the function is undefined there. Steps: 1. A limit is the value a function approaches as inputs near a point, even if the function is undefined there. 2. So the answer stands: A limit is the value a function approaches as inputs near a p...
calculus
The determinant is -2.
{ "A": "-2", "B": "-5", "C": "1", "D": "4" }
mat_0021
multiple_choice
en
Find the determinant of [[1,2],[3,4]].
[ "1×4 − 2×3.", "Det = -2.", "Select option A." ]
math
Answer: -2 Steps: 1. 1×4 − 2×3. 2. Det = -2. 3. Select option A. Answer: (A)
linear_algebra
Sample spaces list all outcomes, so probabilities attach to a complete well-defined set.
null
mat_0022
concept
en
Why use sample spaces?
[ "Sample spaces list all outcomes, so probabilities attach to a complete well-defined set.", "So the answer stands: Sample spaces list all outcomes, so probabilities attach to a complete well-defined set." ]
math
Answer: Sample spaces list all outcomes, so probabilities attach to a complete well-defined set. Steps: 1. Sample spaces list all outcomes, so probabilities attach to a complete well-defined set. 2. So the answer stands: Sample spaces list all outcomes, so probabilities attach to a complete well-defined set.
probability
The gcd is 6.
{ "A": "6", "B": "3", "C": "9", "D": "12" }
mat_0023
multiple_choice
en
Find gcd(12, 18).
[ "Factor 3 out twice.", "gcd = 6.", "Select option A." ]
math
Answer: 6 Steps: 1. Factor 3 out twice. 2. gcd = 6. 3. Select option A. Answer: (A)
number_theory
Combinatorics counts arrangements and selections, turning listing questions into formulas.
null
mat_0024
concept
en
What is combinatorics?
[ "Combinatorics counts arrangements and selections, turning listing questions into formulas.", "So the answer stands: Combinatorics counts arrangements and selections, turning listing questions into formulas." ]
math
Answer: Combinatorics counts arrangements and selections, turning listing questions into formulas. Steps: 1. Combinatorics counts arrangements and selections, turning listing questions into formulas. 2. So the answer stands: Combinatorics counts arrangements and selections, turning listing questions into formulas.
combinatorics
Sum: 28.
null
mat_0025
worked_example
en
Prove by formula: find the sum 1 + 2 + ... + 7.
[ "Pair 1+7, 2+6, ...", "Use 7×8/2.", "= 28." ]
math
Answer: Sum: 28. Steps: 1. Pair 1+7, 2+6, ... 2. Use 7×8/2. 3. = 28.
proofs
Derivace je 4.
{ "A": "4", "B": "2", "C": "6", "D": "8" }
mat_0026
multiple_choice
cs
Pro f(x) = 1x² + 2x vypočítej f'(1).
[ "f'(x) = 2x + 2.", "V 1: 4.", "Vyber možnost A." ]
math
Answer: 4 Steps: 1. f'(x) = 2x + 2. 2. V 1: 4. 3. Vyber možnost A. Answer: (A)
calculus
The trace is 7.
{ "A": "5", "B": "7", "C": "9", "D": "11" }
mat_0027
multiple_choice
en
Find the trace of [[2,1],[2,5]].
[ "2 + 5.", "Trace = 7.", "Select option B." ]
math
Answer: 7 Steps: 1. 2 + 5. 2. Trace = 7. 3. Select option B. Answer: (B)
linear_algebra
It updates chance given new evidence via P(A|B), the core of learning from data.
null
mat_0028
concept
en
What is conditional probability?
[ "It updates chance given new evidence via P(A|B), the core of learning from data.", "So the answer stands: It updates chance given new evidence via P(A|B), the core of learning from data." ]
math
Answer: It updates chance given new evidence via P(A|B), the core of learning from data. Steps: 1. It updates chance given new evidence via P(A|B), the core of learning from data. 2. So the answer stands: It updates chance given new evidence via P(A|B), the core of learning from data.
probability
NSD = 4.
null
mat_0029
worked_example
cs
Spočítej NSD(8, 12) krok za krokem.
[ "Rozlož: 8=4×2, 12=6×2.", "Společné: 2×NSD(4,6).", "= 2×2 = 4." ]
math
Answer: NSD = 4. Steps: 1. Rozlož: 8=4×2, 12=6×2. 2. Společné: 2×NSD(4,6). 3. = 2×2 = 4.
number_theory
Factorials count orderings of distinct objects, since each slot has one fewer choice.
null
mat_0030
concept
en
Why factorials?
[ "Factorials count orderings of distinct objects, since each slot has one fewer choice.", "So the answer stands: Factorials count orderings of distinct objects, since each slot has one fewer choice." ]
math
Answer: Factorials count orderings of distinct objects, since each slot has one fewer choice. Steps: 1. Factorials count orderings of distinct objects, since each slot has one fewer choice. 2. So the answer stands: Factorials count orderings of distinct objects, since each slot has one fewer choice.
combinatorics
Contradiction assumes the claim is false and derives nonsense, so the original claim must be true.
null
mat_0031
concept
en
Why use proof by contradiction?
[ "Contradiction assumes the claim is false and derives nonsense, so the original claim must be true.", "So the answer stands: Contradiction assumes the claim is false and derives nonsense, so the original claim must be true." ]
math
Answer: Contradiction assumes the claim is false and derives nonsense, so the original claim must be true. Steps: 1. Contradiction assumes the claim is false and derives nonsense, so the original claim must be true. 2. So the answer stands: Contradiction assumes the claim is false and derives nonsense, so the original ...
proofs
Continuous functions have no jumps, so small input changes give small output changes everywhere.
null
mat_0032
concept
en
Why study continuity?
[ "Continuous functions have no jumps, so small input changes give small output changes everywhere.", "So the answer stands: Continuous functions have no jumps, so small input changes give small output changes everywhere." ]
math
Answer: Continuous functions have no jumps, so small input changes give small output changes everywhere. Steps: 1. Continuous functions have no jumps, so small input changes give small output changes everywhere. 2. So the answer stands: Continuous functions have no jumps, so small input changes give small output change...
calculus
A vector is a quantity with direction and size, added component-wise and scaled by numbers.
null
mat_0033
concept
en
What is a vector?
[ "A vector is a quantity with direction and size, added component-wise and scaled by numbers.", "So the answer stands: A vector is a quantity with direction and size, added component-wise and scaled by numbers." ]
math
Answer: A vector is a quantity with direction and size, added component-wise and scaled by numbers. Steps: 1. A vector is a quantity with direction and size, added component-wise and scaled by numbers. 2. So the answer stands: A vector is a quantity with direction and size, added component-wise and scaled by numbers.
linear_algebra
The probability is 1/6.
{ "A": "1/6", "B": "1/5", "C": "1/7", "D": "2/6" }
mat_0034
multiple_choice
en
A fair 6-sided die is rolled. What is the probability of one specific number?
[ "1 face of 6.", "P = 1/6.", "Select option A." ]
math
Answer: 1/6 Steps: 1. 1 face of 6. 2. P = 1/6. 3. Select option A. Answer: (A)
probability
Every integer above 1 factors uniquely into primes, grounding all of arithmetic.
null
mat_0035
concept
en
What is the fundamental theorem of arithmetic?
[ "Every integer above 1 factors uniquely into primes, grounding all of arithmetic.", "So the answer stands: Every integer above 1 factors uniquely into primes, grounding all of arithmetic." ]
math
Answer: Every integer above 1 factors uniquely into primes, grounding all of arithmetic. Steps: 1. Every integer above 1 factors uniquely into primes, grounding all of arithmetic. 2. So the answer stands: Every integer above 1 factors uniquely into primes, grounding all of arithmetic.
number_theory
C(6,3) = 20.
null
mat_0036
worked_example
en
Show the computation of C(6,3).
[ "n(n−1)(n−2)/6.", "6×5×4/6.", "= 20." ]
math
Answer: C(6,3) = 20. Steps: 1. n(n−1)(n−2)/6. 2. 6×5×4/6. 3. = 20.
combinatorics
The table has 4 rows.
{ "A": "4", "B": "2", "C": "6", "D": "8" }
mat_0037
multiple_choice
en
How many rows does a truth table with 2 variables have?
[ "2^2 rows.", "Total: 4.", "Select option A." ]
math
Answer: 4 Steps: 1. 2^2 rows. 2. Total: 4. 3. Select option A. Answer: (A)
proofs
f'(3) = 20.
null
mat_0038
worked_example
en
For f(x) = 3x² + 2x, compute f'(3) step by step.
[ "f'(x) = 6x + 2.", "Plug x = 3.", "6×3 + 2 = 20." ]
math
Answer: f'(3) = 20. Steps: 1. f'(x) = 6x + 2. 2. Plug x = 3. 3. 6×3 + 2 = 20.
calculus
Matrices encode linear maps and systems compactly, turning algebra into row operations.
null
mat_0039
concept
en
Why use matrices?
[ "Matrices encode linear maps and systems compactly, turning algebra into row operations.", "So the answer stands: Matrices encode linear maps and systems compactly, turning algebra into row operations." ]
math
Answer: Matrices encode linear maps and systems compactly, turning algebra into row operations. Steps: 1. Matrices encode linear maps and systems compactly, turning algebra into row operations. 2. So the answer stands: Matrices encode linear maps and systems compactly, turning algebra into row operations.
linear_algebra
P(red) = 3/7.
null
mat_0040
worked_example
en
A bag holds 3 red and 4 blue marbles. Show P(red).
[ "Red: 3.", "Total: 7.", "P = 3/7." ]
math
Answer: P(red) = 3/7. Steps: 1. Red: 3. 2. Total: 7. 3. P = 3/7.
probability
The remainder is 1.
{ "A": "2", "B": "1", "C": "3", "D": "4" }
mat_0041
multiple_choice
en
Find (100) mod 9.
[ "100 ÷ 9.", "Remainder 1.", "Select option B." ]
math
Answer: 1 Steps: 1. 100 ÷ 9. 2. Remainder 1. 3. Select option B. Answer: (B)
number_theory
C(6,2) = 15.
null
mat_0042
worked_example
en
Show the computation of C(6,2).
[ "Formula n(n−1)/2.", "6×5/2.", "= 15." ]
math
Answer: C(6,2) = 15. Steps: 1. Formula n(n−1)/2. 2. 6×5/2. 3. = 15.
combinatorics
The sum is 15.
{ "A": "10", "B": "15", "C": "20", "D": "25" }
mat_0043
multiple_choice
en
What is the sum 1 + 2 + ... + 5?
[ "5×6/2.", "Sum = 15.", "Select option B." ]
math
Answer: 15 Steps: 1. 5×6/2. 2. Sum = 15. 3. Select option B. Answer: (B)
proofs
Integral: 64.
null
mat_0044
worked_example
en
Evaluate the integral of 3x² from 0 to 4.
[ "Antiderivative: x³.", "Evaluate 0 to 4.", "4³ − 0 = 64." ]
math
Answer: Integral: 64. Steps: 1. Antiderivative: x³. 2. Evaluate 0 to 4. 3. 4³ − 0 = 64.
calculus
Stopa: 7.
null
mat_0045
worked_example
cs
Spočítej stopu matice [[3,0],[0,4]].
[ "Sečti diagonálu.", "3 + 4.", "= 7." ]
math
Answer: Stopa: 7. Steps: 1. Sečti diagonálu. 2. 3 + 4. 3. = 7.
linear_algebra
Bayes flips conditionals to infer causes from effects, powering diagnosis and spam filters.
null
mat_0046
concept
en
Why Bayes' theorem?
[ "Bayes flips conditionals to infer causes from effects, powering diagnosis and spam filters.", "So the answer stands: Bayes flips conditionals to infer causes from effects, powering diagnosis and spam filters." ]
math
Answer: Bayes flips conditionals to infer causes from effects, powering diagnosis and spam filters. Steps: 1. Bayes flips conditionals to infer causes from effects, powering diagnosis and spam filters. 2. So the answer stands: Bayes flips conditionals to infer causes from effects, powering diagnosis and spam filters.
probability
a dělí b, pokud existuje k s b = ak.
null
mat_0047
concept
cs
Co je dělitelnost?
[ "a dělí b, pokud existuje k s b = ak.", "Odpověď tedy platí: a dělí b, pokud existuje k s b = ak." ]
math
Answer: a dělí b, pokud existuje k s b = ak. Steps: 1. a dělí b, pokud existuje k s b = ak. 2. Odpověď tedy platí: a dělí b, pokud existuje k s b = ak.
number_theory
P(3,2) is 6.
{ "A": "3", "B": "6", "C": "9", "D": "12" }
mat_0048
multiple_choice
en
Compute P(3,2).
[ "3×2.", "= 6.", "Select option B." ]
math
Answer: 6 Steps: 1. 3×2. 2. = 6. 3. Select option B. Answer: (B)
combinatorics
Přímý důkaz předpokládá předpoklady a odvozuje závěr krok za krokem.
null
mat_0049
concept
cs
Co je přímý důkaz?
[ "Přímý důkaz předpokládá předpoklady a odvozuje závěr krok za krokem.", "Odpověď tedy platí: Přímý důkaz předpokládá předpoklady a odvozuje závěr krok za krokem." ]
math
Answer: Přímý důkaz předpokládá předpoklady a odvozuje závěr krok za krokem. Steps: 1. Přímý důkaz předpokládá předpoklady a odvozuje závěr krok za krokem. 2. Odpověď tedy platí: Přímý důkaz předpokládá předpoklady a odvozuje závěr krok za krokem.
proofs
f'(2) = 9.
null
mat_0050
worked_example
cs
Pro f(x) = 2x² + 1x spočítej f'(2) krok za krokem.
[ "f'(x) = 4x + 1.", "Dosaď x = 2.", "4×2 + 1 = 9." ]
math
Answer: f'(2) = 9. Steps: 1. f'(x) = 4x + 1. 2. Dosaď x = 2. 3. 4×2 + 1 = 9.
calculus