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| Description: All variables are effectively bound in a distinct variable specifier. Lemma L19 in [Megill] p. 446 (p. 14 of the preprint). |
| Ref | Expression |
|---|---|
| hbnae |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | hbae 1145 |
. 2
| |
| 2 | 1 | hbn 1004 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: hbnaes 1148 dvelimfALT 1153 equvini 1168 sbequ6 1191 equs5 1221 sbequi 1228 hbsb4 1248 sbidm 1254 sbco2 1255 sbco3 1257 sbcom 1258 sbal2 1358 ax11indalem 1368 ax11inda2ALT 1369 hbeu 1389 ralcom2 1776 dfid3 2836 axextnd 4943 axrepndlem1 4944 axrepndlem2 4945 axrepnd 4946 axunndlem1 4947 axunnd 4948 axpowndlem2 4950 axpowndlem3 4951 axpowndlem4 4952 axpownd 4953 axregndlem2 4955 axregnd 4956 axinfndlem1 4957 axinfnd 4958 axacndlem4 4962 axacndlem5 4963 axacnd 4964 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 962 ax-gen 963 ax-10 966 ax-12 968 ax-4 973 ax-5o 975 ax-6o 978 ax-10o 1140 |