In 5.2.2 of the FIDE laws it says:
The game is drawn when a position has arisen in which neither player can checkmate the opponent’s king with any series of legal moves. The game is said to end in a ‘dead position’.
and in 9.6.2 it says
[If one or both of the following occur(s) then the game is drawn:] any series of at least 75 moves have been made by each player without the movement of any pawn and without any capture.
In a discussion we were wondering whether these rules combine, i.e. whether a position where it is not possible for mate to occur within the 75 moves rule can be considered dead. (for 50 moves we suspect the answer is no but for 75 moves it seems less clear) I suppose the same question can also be raised for 5-fold repetition.
EDIT: Since there appears to be some confusion I will add an example which is very similar to the game that caused my question. Consider the following position after White move 74: There have not yet been 75 moves without a capture or pawn move, however, it is impossible to reach a mate position within the 75 move rule. Black loses on time. Should the position have been declared dead already?
[Variant "From Position"]
[FEN "4k3/8/8/8/8/8/8/4KBN1 w - - 0 1"]
1. Ke2 Ke7 2. Kd2 Kd7 3. Ke3 Ke7 4. Ke4 Ke8 5. Ke5 Kd8 6. Kd6 Kc8 7. Kc6 Kb8 8. Be2 Kc8 9. Bf1 Kd8 10. Be2 Ke8 11. Bf1 Kf8 12. Bg2 Kg8 13. Bf3 Kh8 14. Bg2 Kg8 15. Bf3 Kh8 16. Bg2 Kg8 17. Bf3 Kh8 18. Bg2 Kg8 19. Kd6 Kf8 20. Bf3 Kg8 21. Bg2 Kg7 22. Be4 Kf7 23. Bd3 Kg7 24. Be2 Kg8 25. Ke6 Kg7 26. Bd3 Kg8 27. Bc4 Kg7 28. Bb5 Kg8 29. Ba6 Kg7 30. Bb7 Kg8 31. Bc6 Kg7 32. Ba8 Kg8 33. Bd5 Kg7 34. Be4 Kg8 35. Bf3 Kg7 36. Bg2 Kh8 37. Kf6 Kg8 38. Bf3 Kh8 39. Be4 Kg8 40. Bd5+ Kh8 41. Bc6 Kg8 42. Bb7 Kh8 43. Ba8 Kg8 44. Bh1 Kh8 45. Bg2 Kg8 46. Bf3 Kh8 47. Be4 Kg8 48. Bd5+ Kh8 49. Bc6 Kg8 50. Bb7 Kh8 51. Nf3 Kh7 52. Nh4 Kh6 53. Ng6 Kh7 54. Bd5 Kh6 55. Ba2 Kh7 56. Bb3 Kh6 57. Bc4 Kh7 58. Bd5 Kh6 59. Be6 Kh7 60. Bf7 Kh6 61. Bg8 Kh5 62. Ne5 Kh4 63. Kf5 Kg3 64. Ng4 Kg2 65. Bc4 Kf3 66. Bf1 Kg3 67. Be2 Kh4 68. Kf4 Kh5 69. Bd3 Kh4 70. Bg6 Kh3 71. Ne3 Kh4 72. Ng2+ Kh3 73. Kf3 Kh2 74. Kf2 {Black loses on time. Should the position already have been declared dead?}