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| Description: Inference from Theorem 19.21 of [Margaris] p. 90. |
| Ref | Expression |
|---|---|
| 19.21bi.1 |
|
| Ref | Expression |
|---|---|
| 19.21bi |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 19.21bi.1 |
. 2
| |
| 2 | ax-4 973 |
. 2
| |
| 3 | 1, 2 | syl 10 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: 19.21bbi 1061 aev 1208 2euex 1441 eqeq1 1481 eleq2 1535 r19.21bi 1725 ssel 2063 pocl 2844 funmo 3532 funeu 3537 funun 3554 fn0 3605 hbfvd2 3731 ac7 4748 axpowndlem2 4950 axpowndlem4 4952 axregndlem2 4955 axinfnd 4958 prcdpq 5097 fillsb 10560 fipfil2 10564 fipfil2OLD 10565 filint2 10574 filint2OLD 10575 cmpmon 10743 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-mp 7 ax-4 973 |