Theorem 1.20 (first part): $\Phi:\ast_\alpha\pi_1(A_\alpha)\to\pi_1(X)$ is surjective · Prove2Me

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Initializing...

Theorem 1.20 (first part): $\Phi:\ast_\alpha\pi_1(A_\alpha)\to\pi_1(X)$ is surjective · Prove2Me