Test "bugs/rec-k-lie"
Expected: ✋ reject · Size: 5.3 KB · Lines: 87 · lean4export: 3.1.0 · Lean: 4.29.1 · 📄 Declaration · 🔗 Source
False theorem via trusted k on a recursor.
Define MyBool with two constructors, and lie by claiming its recursor is K-like,
so the major premise is replaced by the first constructor without being examined.
disc MyBool.true is then True rather than False.
MyBool rather than Bool because a module that overwrites an imported constant
cannot be re-imported by the exporter.
Nanoda and its descendants accepted this until it was fixed.
| Checker | Result | ⏱️ | 🧠 | |||
|---|---|---|---|---|---|---|
| mathgraph | ✋ | 1 ms | 29.8 MB | |||
| sokonanoda | ✋ | 1 ms | 33.8 MB | |||
| nanoclo | ✋ | 1 ms | 49.6 MB | |||
| con-ron | ✋ | 1 ms | 12.0 MB | |||
| lazylean | ✋ | 1 ms | 21.3 MB | |||
| nanoda | ✋ | 1 ms | 3.1 MB | |||
| nanobruijn | ✋ | 1 ms | 7.2 MB | |||
| con-leche | ✋ | 3 ms | 17.2 MB | |||
| eink0rn | ✋ | 2 ms | 11.5 MB | |||
| ind-models | ✋ | 58 ms | 104.8 MB | |||
| official | ✋ | 28 ms | 67.1 MB | |||
| lean4lean | ✋ | 76 ms | 104.4 MB | |||
| tenet | ✋ | 132 ms | 44.0 MB | |||
| nanoclo-fortran | ✋ | 1 ms | 4.6 MB | |||
| lean4cobol | ✋ | 3 ms | 13.6 MB | |||
| evmlean | ✋ | 578 ms | 133.4 MB | |||
| mini | ✋ | 34 ms | 74.0 MB | |||
| overfull | ✋ | 9.1 s | 46.0 MB | |||
| kiota | ✋ | 1 ms | 7.1 MB | |||
| canonical-min | 🚫 | 387 ms | 1.1 GB | |||
| rpylean | ✋ | 1 ms | 4.5 MB | |||
| vow-lean-kernel | ✋ | 83 ms | 8.2 MB | |||
| official-v4.28.0 | ✋ | 35 ms | 74.2 MB | |||
| still-nanoda | 👍 | 1 ms | 3.1 MB | |||
| nyaya | ✋ | 2 ms | 9.1 MB | |||
| parse-only | 👍 | 27 ms | 65.2 MB |