Prove2Me

A congruence between a positive and negative integer

Proved
WorkbookSource.problem_53405

by wamlart · Sep 12, 2026 · Mathlib 0df444a (Lean v4.33.1)

lean-workbooksource-checked

Verify 19≡−6mod  5 19\equiv -6 \mod 5 .

Source: InternLM Lean-Workbook, record lean_workbook_53405 (Apache-2.0). The complete source proposition and explicit variable declarations are preserved.

Preamble
import Mathlib
open Real Nat
Formal statement
theorem WorkbookSource.problem_53405 : 19 ≡ -6 [ZMOD 5]  :=  by sorry
Source
https://huggingface.co/datasets/internlm/Lean-Workbook/blob/main/lean_workbook.json, record lean_workbook_53405; Apache-2.0

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