The product of two specified integers

Proved

WorkbookSource.problem_50548

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

lean-workbooksource-checked

Find the value of $N_1N_2$ given $N_1 = -6$ and $N_2 = 41$

Source: InternLM Lean-Workbook, record lean_workbook_50548 (Apache-2.0). The complete source proposition and its explicit variable declarations are preserved.

Preamble

import Mathlib
open Real Nat

Formal statement

theorem WorkbookSource.problem_50548 (N₁ N₂ : ℤ) (h₁ : N₁ = -6) (h₂ : N₂ = 41) : N₁ * N₂ = -246  :=  by sorry

Source

https://huggingface.co/datasets/internlm/Lean-Workbook/blob/main/lean_workbook.json, record lean_workbook_50548; Apache-2.0

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