Correct answer
Student view placeholder
In student views this area is used for assessment and score info.
Tools
Staff information
Question
Title:
Construct mathematical proofs dragging and dropping blocks
Variant
Started at:
2026-09-19 08:00:20 (CDT)
Duration:
0s
Show/Hide answer
{
"proof-by-cases": [
{
"tag": "1",
"uuid": "d4cb4294-2bdb-4d65-9cee-8e2111dd97de",
"final": false,
"index": 0,
"indent": null,
"depends": [],
"ranking": -1,
"group_info": {
"tag": null,
"depends": null
},
"inner_html": " Proof by Cases:",
"distractor_for": null,
"initially_placed": false,
"ordering_feedback": null,
"distractor_feedback": null
},
{
"tag": "2",
"uuid": "b203a8ab-0843-4255-a983-7e27e8083aa8",
"final": false,
"index": 1,
"indent": null,
"depends": [],
"ranking": -1,
"group_info": {
"tag": "g1",
"depends": [
"1"
]
},
"inner_html": " Case $A \\land C$: ",
"distractor_for": null,
"initially_placed": false,
"ordering_feedback": null,
"distractor_feedback": null
},
{
"tag": "3",
"uuid": "c0e2f741-c559-48ee-ac35-01a417acecf7",
"final": false,
"index": 2,
"indent": null,
"depends": [
"2"
],
"ranking": -1,
"group_info": {
"tag": "g1",
"depends": [
"1"
]
},
"inner_html": " Since $A \\land C$ is true, we know $A$ is true.",
"distractor_for": null,
"initially_placed": false,
"ordering_feedback": null,
"distractor_feedback": null
},
{
"tag": "4",
"uuid": "ed584834-0207-4fee-ad4e-2b1ebc1e6bbb",
"final": false,
"index": 3,
"indent": null,
"depends": [],
"ranking": -1,
"group_info": {
"tag": "g2",
"depends": [
"1"
]
},
"inner_html": " Case $A \\land B$: ",
"distractor_for": null,
"initially_placed": false,
"ordering_feedback": null,
"distractor_feedback": null
},
{
"tag": "5",
"uuid": "ed2f8a2f-9784-4c9f-818a-de7dc07a08b4",
"final": false,
"index": 4,
"indent": null,
"depends": [
"4"
],
"ranking": -1,
"group_info": {
"tag": "g2",
"depends": [
"1"
]
},
"inner_html": " Since $A \\land B$ is true, we know $A$ is true.",
"distractor_for": null,
"initially_placed": false,
"ordering_feedback": null,
"distractor_feedback": null
},
{
"tag": "6",
"uuid": "d5bd619a-052c-47f3-b665-7eccbe4c3d6f",
"final": false,
"index": 5,
"indent": null,
"depends": [
"g1",
"g2"
],
"ranking": -1,
"group_info": {
"tag": null,
"depends": null
},
"inner_html": "This completes the proof.",
"distractor_for": null,
"initially_placed": false,
"ordering_feedback": null,
"distractor_feedback": null
}
]
}