1 to 49 how to express natural numbers with jiugong bagua diagram?

The set n of natural numbers refers to a set that satisfies the following conditions:

① There is an element in n, which is recorded as 1.

② Every element in n can find an element in n as its successor.

③ 1 is the successor of 0. ④0 is not the successor of any element.

⑤ Different elements have different successors.

⑥ (inductive axiom) Any subset m of n, if 1∈M, and as long as X is in M, it can be deduced that the successor of X is also in M, then M = N. ..

Extended data:

In a big way, from the early winter of solstice to the end of mango seed, it is Yang Dun; From the beginning of the summer solstice to the heavy snow, the relationship between the ordinal number of the bureau and the solar terms is:

Yang Dun:

Winter solstice, fright, 174, slight cold, 285,

Keywords great cold, vernal equinox 396, rain 963,

Qingming, changxia 4 17, beginning of spring 852,

Grain Rain, Xiaoman 528, Mangzhong 639.

Yin Dun:

Summer solstice, Millennium 936, light summer 825,

Summer, autumnal equinox 7 14, beginning of autumn 258,

Cold dew, beginning of winter 693, long summer 147,

The first frost, light snow 582, heavy snow 47 1.

That is, in winter, Shangyuan dodged one game for Yang, Zhongyuan dodged seven games for Yang and Xiayuan dodged four games for Yang. Others and so on.

Baidu Encyclopedia-Jiugong Bagua

Baidu Encyclopedia-Natural Numbers