Lean Kernel Arena / init

Test "init"

Expected: 👍 accept · Size: 309.5 MB · Lines: 6.1 M · lean4export: 3.1.0 · Lean: 4.29.1 · 📄 Declaration · 🔗 Source

The Init module export from Lean 4 core.

This test contains the fundamental building blocks of Lean 4, including:

  • Basic data types (Nat, List, Array, String, etc.)
  • Core tactics and syntax
  • Foundational mathematical structures
  • Essential metaprogramming infrastructure

This is one of the smallest meaningful test cases, making it ideal for initial checker validation and debugging.

Checker Result ⏱️ 🧠
mathgraph 👍 8.1 s (÷8.3) 738.1 MB (+35%)
ind-models 👍 1.2 m (+8%) 515.3 MB (-6%)
official-nightly 👍 1.0 m (-9%) 532.8 MB (-3%)
evmlean 🚫 0 ms 0 B
nanoda 👍 34.6 s (-49%) 401.3 MB (-27%)
mini 🚫 0 ms 0 B
lean4lean 👍 1.5 m (+31%) 584.5 MB (+7%)
sokonanoda 👍 9.0 s (÷7.5) 672.3 MB (+23%)
zignodamus 👍 13.4 s (÷5.0) 757.2 MB (+38%)
nanoclo 👍 20.2 s (÷3.3) 582.8 MB (+6%)
nanobruijn 👍 35.4 s (-47%) 437.9 MB (-20%)
kiota 5.6 m 11.9 GB
official 👍 1.1 m (0%) 548.7 MB (0%)
vow-lean-kernel 💥 1.4 m 486.6 MB
rpylean 👍 2.2 m (+93%) 3.4 GB (×6.3)
official-v4.28.0 👍 1.6 m (+39%) 561.6 MB (+2%)
still-nanoda 👍 46.1 s (-31%) 421.1 MB (-23%)
nyaya 💥 16.0 s 687.1 MB
parse-only 👍 16.6 s (÷4.0) 534.1 MB (-3%)