https://github.com/umpolungfish/p4rakernel

a fork of Lean 4 (v4.28.0) implementing a true paraconsistent type-theoretic kernel — the principle of explosion — "ex falso quodlibet" — is disabled at the kernel level.

belnap-logic dialetheia four-logic imscribe imscribing-grammar imscriptive paraconsistent-kernel paraconsistent-lean4 paraconsistent-logic

Last synced: 12 Jun 2026