graph LR
    idea_019c68e2_e395_4e8e_9922_1994b1f7ac99["Einstein Summation Convention"]
    idea_05d58813_f290_4052_9f2a_9710854799fb["Spacetime Metric Tensor Components in General Relativity"]
    idea_2591f787_fcfb_4647_bcc8_25ab08974ca8["Physics"]
    idea_6cf5ebae_bd52_4cac_a069_45a9f0c2afcb["Spacetime Interval and Invariance in Special Relativity"]
    idea_8712e4fc_7bcb_4b0a_97a8_c4b332b2bd65["Mathematics in general"]
    idea_a7ab481a_2105_4be2_b5e7_c8396fc49352["Mathematics for nonmathematicians (engineering, social sciences, etc.)"]
    idea_8712e4fc_7bcb_4b0a_97a8_c4b332b2bd65 --> idea_05d58813_f290_4052_9f2a_9710854799fb
    idea_6cf5ebae_bd52_4cac_a069_45a9f0c2afcb --> idea_05d58813_f290_4052_9f2a_9710854799fb
    idea_a7ab481a_2105_4be2_b5e7_c8396fc49352 --> idea_05d58813_f290_4052_9f2a_9710854799fb
    idea_019c68e2_e395_4e8e_9922_1994b1f7ac99 --> idea_05d58813_f290_4052_9f2a_9710854799fb
    style idea_6cf5ebae_bd52_4cac_a069_45a9f0c2afcb fill:#fef3c7,stroke:#f59e0b,color:#92400e
    style idea_019c68e2_e395_4e8e_9922_1994b1f7ac99 fill:#fef3c7,stroke:#f59e0b,color:#92400e
    style idea_2591f787_fcfb_4647_bcc8_25ab08974ca8 fill:#7f1d1d,stroke:#450a0a,color:#fca5a5
    style idea_05d58813_f290_4052_9f2a_9710854799fb fill:#e5e7eb,stroke:#9ca3af,color:#374151
    style idea_a7ab481a_2105_4be2_b5e7_c8396fc49352 fill:#7f1d1d,stroke:#450a0a,color:#fca5a5
    style idea_8712e4fc_7bcb_4b0a_97a8_c4b332b2bd65 fill:#7f1d1d,stroke:#450a0a,color:#fca5a5