Description: SH closure of join. (Contributed by NM, 5-May-2000) (New usage is discouraged.)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | shincl.1 | |- A e. SH  | 
					|
| shincl.2 | |- B e. SH  | 
					||
| Assertion | shjshcli | |- ( A vH B ) e. SH  | 
				
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | shincl.1 | |- A e. SH  | 
						|
| 2 | shincl.2 | |- B e. SH  | 
						|
| 3 | 1 2 | shjcli | |- ( A vH B ) e. CH  | 
						
| 4 | 3 | chshii | |- ( A vH B ) e. SH  |